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Light Fixture for PhotonTube T8 LED Grow Lights

I am inquiring about where/what type of light/lamp I can purchase that would hold your 48” Photon tube LED ”grow” tubes. I am also hoping you can clarify the statement about being able to interchange them with fluorescent tubes, either with or without removing the ballast. 

The key term to look for when selecting compatible T5 or T8 fixtures that do not require ballast adjustment is ‘LED Ready’. LED Ready fixtures are typically designed without ballasts and allow for the T5 or T8 products to be immediately functional. Based on my review, there appear to be several T5 and T8 fixtures available from online marketplaces.

As older fluorescent light fixtures often utilize ballasts, there can be instances where the LED retrofit lights (such as ours) are incompatible with the ballast hardware. In these instances, we recommend a ballast-bypass, which allows for the lights to be directly powered by the wiring in your space.

I have attached a link below for the product specification sheet, which illustrates the ballast-bypass configuration.

Product specification sheet:

My understanding is your photontubes replicate the sunlight spectrum and are good to use on seedlings, is this correct? Are there fixtures you can recommend that work with these (not sure you are allowed to do that), or alternatively is there anything that I should be on the lookout for with regards to purchasing?

One other question, what is the area (sq. footage?) that 2 lights (2 bulbs) would illuminate if at about a 4 inch distance from its subject? 

We can confirm that our 6500K PhotonTube™ T8 LED products are designed to output light that closely simulates daylight to benefit seedling growth.

Though we do not have any fixtures to recommend at this time, we would be more than happy to check any fixtures that you are considering for compatibility. Regarding the square foot light output, I would be more than happy to confirm the technical details with my team. As soon as I have received confirmation, I will plan to let you know right away.

It might also be helpful to know that we offer a 30-day return policy for all orders. In the event that these products don’t work well for your installation, just reach out and we will gladly issue a prepaid return label.

F40T12 48" Fluorescent Replacement for Bathroom Lighting

I need to get a replacement for the F40T12 48" natural light fluorescent in the bathroom. My wife liked the LED lights I purchased from you in the past. 

While we only sell T8 LED tube light products, we're happy to confirm that our T8 lamps can be used in your existing T12 fixture with the T12 fluorescent ballast removed or bypassed.

You may refer to the installation guide below. 

ballast-bypass installation method described within the product guide.

T8 LED Tube Light for Art Studio

I'm trying to find the best way to light a small studio. I came across your website and I think I'm interested in the Northlux 95 CRI T8. I'm having trouble locating a shop-style plugin/pull cord light fixture where I could use these bulbs. Do you have any recommendations on a specific light fixture or would you point me in a different direction using alternate bulbs for my situation? I currently don't have any hard-wired 4ft fixtures in my studio.

It is indeed a bit difficult to locate compatible fixtures as those available today are still configured for fluorescent lamps, which will almost always include a fluorescent ballast which may or may not cause compatibility issues.

​One tip we've had other customers have success with is searching online for "LED ready" T8 fixtures, which are configured without ballast and can accommodate our LED tube lights directly.

LED Lights in Overhead Soffit to Reflect Off the Ceiling

I generally sit in that recliner at the far end to read. Want to put sufficient light in the overhead soffit to reflect off the ceiling and illuminate the read. The table lamp shown is decorative the task light, barely visible by the chair, is what I use now. Has an LED bulb in it. Glares for the wife seated on the couch. It works well if I bring it down close to the read (magazine or newspaper) bulb is white.

It sounds like we have a few lighting fixtures in your space. To start, are you able to confirm what type of lamps or bulbs your fixtures can accommodate?

​For example, the soffit looks like it may accommodate fluorescent fixtures, but it's a bit difficult to tell from the photo.

​Similarly, are the table lamp and task light standard fixtures that use medium-screw Edison bases (E26)? (E26 is the most commonly seen, traditional screw-in lamp type with a base that is approximately 1 inch in diameter).

Once you can let us know what types of lamps may be compatible with your existing fixtures, we'll have a better idea of what options we have available for you. 

​Additionally, can you let us know what challenges you're facing with your existing lighting - is it the color, clarity, brightness, or a combination of these factors?

​The soffit has a string of incandescent mini lights, circa 1992. We do not use the table lamp but it and the task light use standard e26 screw-in bulbs, the problem is insufficient illumination. The task light if I bring it close to the reading material will work but is ungainly and if it is set higher is not quite enough light but glares at anyone sitting on the couch. I had thought that linear LEDs in both soffits above the chair reflecting off the ceiling might work but leave that to your expertise. Using dimmers they could also provide illumination for the room. The soffit runs on three sides of the room.

We are in full agreement that improving the brightness from your soffit lighting fixture would be the best approach here to simultaneously increase brightness without causing additional glare issues.

​Unfortunately, despite their ubiquity, standard light bulbs induce significant amounts of glare due to their high brightness levels from a relatively small size.

Our first thought here would be to recommend our CENTRIC HOME LED strip lights in 3000K. These LED strip lights emit approximately 450 lumens per foot, which is approximately equal in brightness to a 40-watt incandescent bulb. 

It's a bit difficult to determine from your photo, but my best guess would be that your soffit is approximately 10 feet long. If you were to install the LED strip lights across the entire soffit, this would provide you with approximately 4500 lumens, or 400 watts worth of incandescent bulb brightness.

The LED strip lights could of course extend and span multiple soffits across the three sides of the room as you suggest.

The LED strip lights do require some in-wall wiring and assembly work, but I do believe that this would be an excellent option for you. Below is an example wiring diagram that shows how the LED strips can be wired to a wall dimmer:

Sometimes sitting on the end of the couch to utilize the halogen Torch which almost does the job but could be better. The new light needs to be dimmable, and maybe the color change? 

Each one of the curtains is approx 6 ft across giving us approx 12 ft of the strip light. Approx 5500 lumens per your calculations. You mentioned 3000 Kelvin. Is that overly yellow for reading? Are your strip lights disabled and what dimmer do you suggest for the best performance? 

Is there an approved dimmer for 3-circuit control? I note that LeGrand makes a couple although I am partial to Lutron. 

I personally do not believe that 3000K is "too yellow" although that would certainly be within the realm of personal preference. Do you know what the color temperature of the lamps in your current space is, and what your thoughts on those might be? (Incandescent bulbs are typically 2700K and lower).

To cover the distances you quoted, you will likely need three sets of 16.4 ft LED strip reels, each with its own dimmable power supply. The cost estimate is as follows:

CENTRIC HOME™ LED Strip Lights for Home & Residential: $99 ea

TRIAC Dimmable Power Supply for LED Strip: $139 ea

​We do not have any three-circuit control suggestions, but we do have a list of tested dimmers which are available here:

The reading lamp has a 790-lumen GE REVEAL built therein. It is I think overly bright white. If I bring it clues to the reading material it works but is glary with poor contrast and if further away not bright enough but not heavy. The soffit has a string of very old very small incandescent. I think we might try one set in the two soffits over the Chair to see how this indirect lighting works. 

We believe the GE Reveal lamps use a modified 3000K spectrum. If you find the incandescent lights in the soffit to be acceptable from a color perspective (i.e. not too yellow), then 2700K could also be a good option for you.

Below is an article that might help choose between the two options:

LED Strips for Space Lighting Upgrade

I'm trying to decide what I need to set up your product in my space. Currently, I have fluorescent tubes in a 500 ft. workspace. I would like to replace these with your 99 CRI LED strips and hardwire them to my existing wiring and use a dimmer. I'm not sure if I need 12 or 24, or if I need the Junction box on my power source. 

Our 99 CRI ABSOLUTE SERIES sounds like a great option for upgrading your space's lighting! The flexible LED strip version is available in 12 volts only, so you will want to use the 12 volt TRIAC dimmable power supply to power the LED strip.

​Below is the direct link to the dimmable power supply:

If you intend to install the power supply unit directly inside the fixture, I do not believe that there will be a need for the junction box; typically the junction box is used when the power supply is mounted in an interior wall location.

If you are comfortable with and able to solder your own wires, that would perhaps provide you with the most flexibility and cleanest wiring installation, however, if not, our PN 3070 and PN 3071 connectors may be convenient options for you.

I am replacing five T12 tubes in this space (2500 lumens each), and it seems to be about 60% as bright, even though the lumens should be very close. 

The strip that is wired to the power source is brighter than the second strip, which is wired to the first strip. 

The brighter strip also seems very noticeably brighter closer to the connection that goes to the power source. The channel is also quite hot close to the connection, and warm at the other end. The second strip channel is not warm. 

The brightness drop you are observing may be caused by voltage drop, which can occur during longer LED strip installations. Can you provide some additional detail on how the two LED strip reels are connected?

For voltage drop and safety reasons, the maximum run length specification for any LED strip section is 16.4 ft. Therefore, if you are attempting to connect multiple reels to a single LED power supply, this would likely cause the voltage drop and reduction in brightness you are observing in the second reel.

​As such, we generally recommend connecting each 16.4 ft reel to a separate power supply unit to ensure that the maximum run length is not exceeded.

Can you point me to where in your documentation you recommend using a separate power supply for each 16 ft strip? 

Please see below for the datasheet which indicates the "max run" specification of 16.4 ft.


T8 LED Tubes Lighting for Dental Office Operatories

I am interested in new lighting for my dental office operatories. My lighting needs have a very high level of color matching. Existing fixtures are approximately 20+-year-old fluorescent recessed troffers. I use T12 CRI 90 5000k bulb. Each fixture uses four 48" bulbs. I would like to improve my color-match lighting. What do you recommend? Do you have LED bulbs that will work in my existing fixtures? Do you recommend LED over fluorescent bulbs? 

Based on the details provided, we might recommend our D50 5000K T8 LED Tube Lights for Color Matching (ISO3664:2000) product, as it is designed to be compatible with the D50 global standard for color-critical applications.

Regarding fixtures, we can confirm that these items are not compatible with all ballasts which are pre-installed within fluorescent T8 fixtures. However, we have compiled a list of tested ballasts, and include instructions on how to install these tube lights via ballast bypass methods on the product sheet.

As most fluorescent tube lights have a CRI of 80, the light output will likely wash out some colors. However, as our LED tube lights have a CRI of 95+, your office will benefit from much improved light output.

Does Centric Daylight T8 LED Tube Compatible with PLT Solutions Fixture?

I'm interested in buying these tubes because I can get them in 4000K. I need to buy fixtures though. I want them to be corded with a pull chain. I found these online - PLT Solutions (PLT-11668). Can you tell me if this fixture will be compatible? 

Based on our review of the product link provided, we are happy to confirm that the fixture appears to be compatible with our CENTRIC DAYLIGHT™ Full Spectrum T8 LED Tube Lights.

PhotonTube T8 LED Tubes Replacement

I'd like to replace some standard T8 fluorescent lights with your PhotonTube T8 bulbs (4-pack). I'm pretty sure my lamps have an electronic ballast.

Our PhotonTube T8 LED tube lamps can be used in existing fixtures, as long as they have their ballasts removed, or their ballast is listed on the compatible ballast list shown on the user manual page below:

​Since you mention that your fixture already contains an electronic ballast, you will want to check for compatibility before installing our lamps.

Centric Daylight vs Northlux

Which 95 CRI T8 LED Tube light is better? We are filming videos. Our other studio lights are 5500K but I am thinking the 5000K can work. They would be replacing the current ceiling lights which are quite warm. I was interested in the flicker-free Centric but the Northlux is advertised as studio lighting. Are there potential flicker issues with the Northlux? 

Our NorthLux T8 LED tube lights should work quite well for your needs! They are also flicker-free but not listed as such, since flicker is generally not a concern for most of our visual arts studio customers.

​On the other hand, we completely understand the concerns you have concerning flicker and on-camera use. As such, as an additional layer of assurance of flicker-free performance, we would recommend installing these lamps in a ballast-bypass configuration so that any flicker or other interference from electronic ballasts is not introduced into the light output stream.

We also do find that many TV/cinematography lighting systems are calibrated to 5500K / 5600K, however, the NorthLux 5000K should be a similar match, and the 95 CRI color accuracy should be a great fit for the film.

Does the T8 LED Grow Lights compatible with T12 fixtures?

I am looking to purchase the T8 LED Grow Lights for my kitchen. I just wanted to ensure these would be compatible with the current fixture. Currently, my kitchen is lit by 4 Philips f40t12/CW supreme 40-watt bulbs. I believe this to be a T12 bulb. I've heard T8 and T12 are supposed to be interchangeable. However, I was unsure if the ballast capable of powering the current T12s might be too much voltage for these T8 grow lights I'm looking to replace them with. Would the T8 LED grow lights work as a replacement for the Philips f40t12/cw supreme? Ad if not, do you have a suitable grow light replacement for a T12? 

The T8 LED lamps will fit mechanically in your current T12 fixture, but the T12 fluorescent ballasts will need to be removed and/or bypassed.

​Instructions for how to perform the fixture rewiring can be found in the instructional manual below:

​If you were interested in purchasing a new fixture all together, you may also be interested in our PhotonBlast fixture, which I have provided a link to below:

NorthLux 95 CRI T8 LED Tube for Painting Studio

I'm setting up my painting studio where I create realistic works, and I am looking at using your NorthLux™ 95 CRI T8 LED Tube for Art & Studio. What do I use to hook them up to? Do I purchase one for fluorescents and remove the ballast? A wraparound will look nicer than bulbs, but does it affect the CRI? Also, I have to purchase 4 from you, but I believe 2 will be enough for my space; the room is approx 13' x 15', with a double Easterly window and a single Southerly one. 

Our NorthLux T8 LED lamps sound like a great option for your art studio! As you mention correctly, these T8 lamps require a 4-ft fixture housing. Most fixtures that are available today do indeed have fluorescent ballast, so we would recommend removing the ballast and rewiring the fixture to ensure compatibility. Once the ballast is removed, the T8 lamps can be installed directly.

As long as the diffuser cover in the fixture is transparent or semi-transparent (as opposed to having a colored tint), there should be no effect on the light quality and will not pose any problems from a color accuracy perspective.

​Finally, I've plugged the dimensions of your space into the lumen estimation calculator which you can find at the link below:

The suggested brightness level to achieve 80 footcandles (recommended for art studios) is 15,722 lumens. Based on this lumen output target, we would recommend up to nine of our T8 lamps. (Your initial estimate for just two lamps may have been based on lower brightness needs in line with a residential space).

Do you have a 4-ft full spectrum bulb suitable for T12 fixtures?

I have two 4-ft spectrum bulbs that are getting old they are fluorescent (TRU LIGHT ULTRA F40T 12TLU). I don't know if I need a fixture or not.

It appears that you currently have a T12 fluorescent lamp in a 4-ft T12 fixture. The good news is that our T8 lamps will fit in your existing fixtures, but the existing fluorescent ballast will need to be removed or bypassed.

​Once the ballast removal or bypass is complete, you will be able to use our T8 LED tube lights in the same fixture. 

Is any retrofitting required for T8 LED Grow Light Tube installation?

I want to use the PhotonTube™ T8 LED Grow Light Tube in a fluorescent fixture. Is any retrofitting required, or do I merely use this bulb as a replacement without re-wiring/ballast changes? 

Our T8 LED tube lights can fit into all fluorescent fixtures that are 4 ft in length. So, if you can confirm that your existing fluorescent fixture is 4 ft in length, we can be quite certain that our T8 LED tube lights will fit!

​In terms of the electrical connections, you will want to check if the fluorescent fixture has a ballast inside. If the fluorescent fixture contains a fluorescent ballast, you will want to check that it is listed on our list of fluorescent ballasts, which can be found at the link below:

If the fluorescent ballast is not listed, you will want to remove or bypass the ballast from the fixture.

Replacement T8 LED Tube Light Output Equivalent

I'm looking for replacement tubes for my kitchen light, which currently has 4x 2900 lumen 40W T12 fluorescent tubes. I'd like to purchase your 48" CENTRIC DAYLIGHT Tubes, however at 1800 Lumens and 320 light distribution angle, I am concerned they won't be bright enough. However, the spec sheet says they are comparable to a 40W bulb. Since there is only one light fixture, and I do not intend to add another, I need clarification on the bulb brightness before I can make this purchase.

We can confirm that our T8 LED tube light products offer an output of 1800 lumens per light. As such, it does appear that the output may be less than your current tube lights.

However, please note that we offer a 30-day return policy. If these items wind up not working well for your space, simply let us know and we would be happy to issue a prepaid return label so that they can be returned for a refund.

Fluorescent Replacement LEDs for Above-stove Lighting Installation

I would like to replace the fluorescent lights above my stove with LED lighting. Any suggestions? This vent is about 27 years old and the adjacent fluorescents turn on at the same time as the hood light.

Unfortunately, we do not have any products which would be suitable for an above-stove lighting installation.

​For an above-stove installation, you will want to keep in mind that the lighting fixtures must also be able to withstand high temperatures, grease splatters and smoke. Our products are not rated for such environments, and as such, we would recommend seeking out a specialized product and/or electrician to complete the lighting upgrade.

Do your T8 tubes directly go into T12 fixtures as replacements?

Do your T8 tubes directly go into T12 fixtures as replacements? How are the Sidewinder bias strips daisy chained? Are there connectors supplied, and is soldering required?

It sounds like you currently have 4-ft T12 fluorescent lamps. If so, our T8 LED tube lights can be used in the same fixture, as long as the ballast is either bypassed or completely removed. (The new T8 LED tube lights are NOT compatible with T12 fluorescent ballasts, and should be wired directly to line voltage).

For further instructions on installation and wiring, please reference our installation manual:

As far as the SideWinder product is concerned, located on each end of the LED strip reel is one male DC jack and one female DC jack. As such, no special components or accessories are needed if you are looking to simply daisy-chain the LED strip light reels in an extended run.

NorthLux T8 LED Tube Lights for Art Studio

I presently have fluorescent tubes in my art studio I have 2 ceiling flush-mounted units, each with 4 fluorescent bulbs of 40 watts each. How many of your LED tubes do I need to replace the light of 8 fluorescent 40-watt tubes? Also, can I install these new LED tubes into the fluorescent unit that houses 4 tubes and has a ballast? I do not want to use the ballast anymore as it is over 30 years old and hums make the fluorescent lights flicker.

Our NorthLux T8 LED tube lights sound like a great fit for your lighting upgrade project.

It sounds like you currently have 4-ft T12 fluorescent lamps. If so, our T8 LED tube lights can be used in the same fixture, as long as the ballast is either bypassed, or completely removed. (The new T8 LED tube lights are NOT compatible with T12 fluorescent ballasts, and should be wired directly to line voltage).

Since you mention that the existing ballasts are old and in need of replacement, hopefully this should not be too much of an inconvenience. Additionally, the flicker-free feature of our LED T8 lamps should provide you with a very nice improvement in the lighting environment.

For further instructions on installation and wiring, please reference our installation manual:

In terms of brightness, each one of our T8 LED tubes will produce the same or slightly more light than a T12 fluorescent tube. As such, if you felt that the existing 8 fluorescent tubes provided you with sufficient brightness, a one-to-one replacement with 8 of our T8 LED tube lights should be a good starting point.

Can I hardwire the LED Shop Lights to the ceiling?

Would an electrician be able to ‘hardwire’ the Shop Lights to the ceiling replacing the regular ceiling light? I’m trying to figure out how to change the light over my work table without having cords hanging from the ceiling.

The shop lights are unfortunately not designed to be hard-wired and modifying the product is not recommended and would result in voiding the warranty.​From a purely electrical standpoint, however, the fixture could be configured to be connected directly to the wiring in your ceiling/walls and would operate without any performance issues. We would recommend consulting with your electrician as well as fire and safety regulators for further guidance.

As an alternative, we would perhaps suggest installing ceiling fixtures that can house our T8 lamps, which can be used to provide the same level of light quality as shop lights.

Recommended LED Lights for Basement Fluorescent Replacement

What would you recommend for me to improve lighting in my basement family room? At present, there are 2 four foot long fluorescent long outlets (2 bulbs each) installed in the 80's. We like reading and I like to draw. I am more aware now about the necessity of healthy lighting choices. 

We've reviewed your requirements for your basement, and understand that you have two primary concerns:

​(1) Increase of daylight-like lighting to use during the day, due to the limited amount of natural daylight available in a basement.

(2) Reduction of blue-light intensity during evening hours to reduce impacts on melatonin and circadian rhythm cycles.

Blue light vs natural light can get a bit tricky, since natural light has lots of blue light, and it is not so much the case that "blue light is bad" but "blue light during evening hours can be bad."

For additional background reading, you might find the following article helpful:

Will my existing fixtures work with NorthLux™ 95 CRI T8 LED Tube Lights?

I'm an artist and I need better lights for my studio. I currently have 8 fluorescent bulbs that measure 47" from end to end. The NorthLux sounds perfect but I need to know exactly what I need in order to use them. Will my existing fixtures work or will I have to replace them? 

The first thing to check is to ensure that our 4-ft T8 lamps will physically fit in your fixture. If your current lamps measure 47" (hopefully 48" if you include the pins), that sounds like we're definitely in the ballpark!

​If you can provide additional photos or model numbers of the current lamps, that should be helpful for us to confirm. A common designation, which would affirm physical fit, would be "F32T8".

We will next want to confirm electrical compatibility. Our T8 lamps can be used in fixtures without rewiring anything, if the fluorescent ballast used in the fixture is listed on our compatible ballast list. The compatible ballast list can be found in the instruction manual below:

Should the ballast model not be listed on our compatible ballast list, the fixture will need to be rewired to bypass the ballast completely. Additional connectivity diagrams are also shown on the instruction manual posted above.

Below is the photo of what I have. I put these lights up sometime in the early 90s so everything is quite old. I see the code F40T12 which is not what you specified (F32T8) so something tells me I'm going to have to replace everything. 

The F40T12 is an older, larger lamp compared to the F32T8, but the length and pin connection are identical, so the good news is that the existing fixture will physically accommodate our T8 LED lamps.

​The (slightly) bad news is that the F40T12 fluorescent lamps use a different type of ballast technology that our lamps are not compatible with. This means that the existing fixture will need to be rewired such that the fluorescent ballast is completely removed, or bypassed.

The fixture will need to be rewired according to the diagrams shown in the installation manual, which I have linked to below:

If you are not familiar with or are uncomfortable with rewiring your fixture, we would recommend working with an electrician to get that complete.

The fixtures I have are really old and were pretty cheap to begin with. Would it make more sense to just take them out and get new ones? If so, could you point me to ones that you would recommend? 

From a safety and performance perspective, old fixtures are generally not a problem, unless you are seeing some significant corrosion or other signs of fixture degradation.​If, however, for aesthetics or other reasons you are looking to replace the fixtures completely, that can also be an option for sure.​It can be a bit tricky to identify new compatible fixtures, however, as many are still sold with fluorescent ballasts inside, and we have no way to guarantee compatibility since fixture manufacturers will often swap out the ballast inside the fixture without advance notice.

We wish we had a list of tested fixtures, but unfortunately we do not have any at this time. A search for "LED ready T8 fixtures" online may yield some results for fixtures which specifically do not have the fluorescent ballast pre-installed. Our lamps should be fully and immediately compatible with fixtures that have this designation.

How about these? LED Ready High Bay

We've reviewed the specs for PLT-20023, and while we have not tested this product, I believe this should work well with our T8 LED lamps.​The "single ended direct-wire" and T8 4-ft length specifications are the key specs, both of which are a match with ours.​

LED Strip Lights for Copying Film with DSLR Camera

I'm planning on replacing the fluorescent tubes in the 24"x36" light table I use for copying film negatives and positives with a DSLR camera. High CRI is important and I want to stay in the D50 or 5600k color temperature range. Do you have any recommendations or know of customer experiences for this kind of application? I'd like to do some tests with the FilmGrade and Absolute series, but I don't see a sample kit for the Absolute D50 lights.

Our D50 and 5600K light sources with 95/99 CRI sound like a great fit for your needs. While we do not have any specific case studies that we could point you towards, I'm confident that these specifications will optimize for color fidelity and accuracy in image capture.

You mention that the dimensions of the light table are 24" x 36" - in which case, it may not be feasible to fit our 4-ft T8 LED tube lights in the fixtures unless your light fixtures happen to be 48".

As you mention, our LED strip lights may be a great alternative option. While some additional assembly and wiring will be required, our ABSOLUTE SERIES D50 LED strip lights, or our FilmGrade 5600K LED strip lights could be installed into your current fixture and provide you with a nice improvement in color quality.

We unfortunately do not offer a sample kit for the ABSOLUTE SERIES LED strip lights. We do offer a free returns policy, however, so you may want to take advantage of that to test and compare the two products. All we ask is that you keep the LED strips in tact, including keeping the adhesive liner in place.

When evaluating the options for the Absolute LED series the linear modules 5 pack made the most sense for my application, both from a cost stand point and installation in the light table. The listing for the Absolute module 5 pack says they are individually packaged, but they are all on one board. There’s no way to properly compare the FilmGrade strip and the Absolute modules in the light table without separating the modules. Also there’s no information about how to separate the modules.

What should I do? I feel the Absolute linear module listing on the web site is misleading. From the listing I expected to get 5 separate Absolute modules. That would be easy to compare to the FilmGrade by putting two Absolute modules on each side within the light table and running the FilmGrade strip around the perimeter inside the light table. With the 5 modules on a single board it will be very difficult to get even lighting to compare to the FilmGrade strip.

The 5-pack of the ABSOLUTE SERIES are joined together along the long-edge, and can be separated by bending the modules along the score-line. They can be a bit difficult to separate, and may require a bit of force before they begin to loosen a bit.

The 5-pack modules are eligible for return even after they are separated into individual modules, so please feel free to proceed with the installation for testing. Should there be any need to return the modules, we would be more than happy to accept your return.

Full Spectrum Flicker-Free T8 LED Tube Light for Fluorescent Replacement

I am looking to replace our light table fluorescent tubes with your CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free T8 LED Tube Lights. In this situation where one is working on top of the lights would we order the 5000 or 6500K lamps? Also, these Mainline Tables have fluorescent dimmers, would this work with your lamps? 

Without knowing more about light table usage, the color temperature selection may come down to personal preference and comfort. The 5000K color point lamps will emit more of a cool warm light, while the 6500K color point lamps will emit light similar to direct full sunlight.

Below is the related article which may help with your question.

However, if you find one option to be preferable over the other, simply let us know and we would be happy to issue a return label for a full refund under our 30-day return policy.

Unfortunately, our T8 LED tube light products are not compatible with dimmers, which would include the dimmer on your light table.

LED Tube Lights Fluorescent Replacement Installation

If I have Type A bulbs that are designed for use with a ballast system, will they still function correctly in a non-ballast environment? Can they be connected as if they are Type B, or will the lack of ballast create problems?

Is there an easy way to tell if the lamp is single-ended? Should I assume they are all double-ended unless otherwise marked?

We are certainly in agreement that removing the fluorescent ballast is an excellent idea, especially given the compatibility and potential safety concerns that you experienced.

By definition, UL Type A lamps will require a fluorescent ballast to operate, so once the fluorescent ballast have been removed, you will not be able to use the UL Type A lamps in those fixtures anymore.

That being said, some products, such as Waveform Lighting's T8 LED tubes, can be used in both ballast and non-ballast fixtures. In terms of the UL Type nomenclature, they are considered UL Type A+B.

If you've been able to confirm that your lamps are UL Type B (ballast-bypass), you will need to confirm with the manufacturer or product marking to see whether those lamps are designed for single-ended or double-ended installation. All single-ended installations will use non-shunted lampholders, while double-ended installations may be shunted or non-shunted.

Do you have a high CRI T8 replacement in a 2-foot length?

I see you have a T8 CRI in a 4-foot tube. I am looking for a direct replacement for 2-foot T8 Fluorescents in the Studio. We need a total of 8 lamps for now. Do you have a suitable product? 

Unfortunately, we do not sell T8 LED lamps in the 2-ft length at this time.

Do you have a high CRI 48" 5000k T8 LED tubes replacement with no PWM flicker?

I am currently looking for replacement 48" 5000k T8 LED tubes for my office. I want something with a high CRI and also no PWM flicker. I see your company has two listings. "CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free T8 LED Tube Light" and "NorthLux™ 95 CRI T8 LED Tube for Art & Studio" Is there a difference between the two? How "Flicker-Free" are they?

Our 5000K high CRI, flicker-free LED tube lights sound like a great fit for your office space!

As mentioned, the two products that have the same part number listing are indeed the same product. They have been listed on separate product pages for marketing purposes, and we do apologize for the confusion caused.

Our T8 lamps do not use PWM as they are not designed to be dimmable. As such, their flicker % is kept to below 2%. (All PWM dimming systems have a 100% flicker rate). In addition to photometric testing, we also periodically perform tests using a smartphone's slow motion video capture mode and can confirm that we do not observe any flashing behaviors associated with non flicker-free lamps.

Also, our test report for T8 LED tube light in 6500K shows the measured flicker values of 2% and a flicker index of 0.00. The electronics of the 5000K are the same and we would expect similar, if not identical, flicker metrics.

One additional factor to consider would be whether or not a fluorescent ballast is installed and used in the current T8 fixture. For our lamps, eliminating the fluorescent ballast can be a sure-fire way to ensure that the ballast is not introducing any extra voltage or current fluctuations that can lead to additional flicker.

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