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Home /  Support Center /  Knowledge Base /  D65 (digital arts and graphics)

Are your Absolute Series LED modules D65 illuminant color calibrated?

Are your Absolute series 99 CRI LED modules suitable for use as a D65 illuminant for camera color calibration test charts or are they only intended as illumination for human observers?

We are happy to confirm that our 6500K ABSOLUTE SERIES™ LED Linear Modules are ISO D65 compliant for color calibration purposes. 

5000K vs 6500K: Recommended Color Temperature for Photo Booth

We currently have a car dealership and a photo booth where we take pictures of cars. I am looking at your NorthLux™ 95 CRI LED Shop Light Fixture and wondering what the recommended color would be for a photo booth. 5000 or 6500? We are simply looking for the best lighting to take pictures of our vehicles. 

For photography installations where color-calibrated lighting is important, we usually recommend the 6500K option. 

If you find the 5000K NorthLux™ 95 CRI T5 LED Linear Light Fixture to be a better fit, please feel free to take advantage of our 30-day return policy, where we will gladly provide you with a prepaid return label for any unneeded items. 

D65 Illuminant for Color Correcting Lighting

I'd like to purchase an accurate D65 illuminant (6500k?) for color-correcting a custom-built camera with a MacBeth chart. Can you please recommend a kit of hardware to purchase from you to create this lighting?

We offer several D65 color-calibrated products which may be of specific interest to your needs. Below are some recommendations:

A19 lamp: the most straightforward and standard screw-in lamp using a traditional lamp shape and form factor ( linear fixture: offers a versatile linear lighting option for mounting in various locations. All mounting accessories, including screws or magnets, are included. ( light fixture: great for locations where overhead lighting is needed, and multiple units can be daisy-chained. (

All of these options at 6500K are also calibrated to the D65 color point and are excellent options for color matching using digital imaging equipment (D50 is of course another popular option for visual inspection).

​We have a windowless room dedicated to different camera calibrations, used frequently. The A19 and T5 are great options as they seem to be easily removable. For the A19, would something like this be what you recommend for hosting the bulb? What differences should I expect in light output from the A19 and T5?

Our calibration room has never been used for color calibration, so I am also shopping for a white booth/background. Unlikely, but I’m open to suggestions for this too.

In terms of color quality, you would not notice any difference as both are calibrated to the exact same D65 color point, so it ultimately comes down to the lighting installation and how you'd like to configure the lights.

In terms of brightness, the A19 lamps emit 800 lumens, while the T5 linear fixtures 900 lumens and 1800 lumens for the 2-ft and 4-ft versions, respectively. If your illumination target is a longer, more rectangular area, the linear fixtures might be a better way to evenly illuminate the entire surface.

I've reviewed the Amazon link and can confirm that this would be a great lamp fixture for the A19 lamp!

While we aren't able to provide direct support for the lighting booth and background, here's an article from Church Film School which features our products and may have some overlaps with your project and may be helpful:

Your lamps have been working great, but now I’m looking for something that has a variable temperature. Do you sell anything with a wide range of temperatures?

We, unfortunately, do not have any complete lamp products that offer color temperature control. The closest option we offer is an LED strip component for film and TV studio applications. I've provided the link below:

How do you measure the CRI of your products?

I am interested in the product D65 light. I have a question regarding the CRI. How do you measure the CRI of your products? Is the method as per CIE standards?

We can confirm that our CRI is calculated based on the CIE methods. 

​For our testing, we utilize a spectrometer to find the spectral power distribution of the light source. Once this has been determined, the CRI values can be calculated using the aforementioned CIE method.

I have a question in D65 light it shows we can change the intensity of the light using a dimmer, is the light programmable using Python? Can you please share the full spectrum analysis (440-490nm%), M/P ratio, and detailed features for D65 light? 

We have attached the raw SPD data measurements for the ABSOLUTE SERIES D65 product. We hope this will be helpful in your various calculations.

We do not directly provide support for programmable systems, but we are aware that some of our customers have successfully used Raspberry Pi and Arduino IC systems for custom programming.

Recommended A19 bulbs for Print Viewing

I am a photographer that does fine art inkjet printing. I work in a color-managed system. My monitor is calibrated and profiled to D65. I am looking for an A19 bulb that will give me the best color for print viewing. I need to be able to have the print next to my monitor to compare the print to the image I see on my monitor and judge my color corrections etc. Which of your products would you recommend? 

Based on the details provided, we would recommend our 6500K NorthLux™ 95 CRI E26 A19 LED Bulb for Art & Studio product. 

For additional color calibration lighting, you may also be interested in our Sidewinder™ LED Flex Strip for D65 Bias Lighting product. 

D50 vs D65 for Color Matching Stained Glass

I am building a light box to use with color matching stained glass. Need to match sunlight. I'm considering items 4026.2F.50 or 4026.2F.65. Which would you recommend for my application?

For matching daylight, we would recommend our D65 color temperature option of the NorthLux™ 95 CRI T5 LED Linear Light Fixture. (PN4026.2F.65)

The light box where the light(s) will be installed will have a glass or plexiglass (I haven’t decided which is best to use) cover of approximately 24”L x 19”W. Would one bulb be enough or two, three?

Based on our limited experience with lightboxes, we have found that the ideal lumen output is often defined by the purpose. 

For example, a light table used for the photography of negatives might require a very high output to assist with high-quality capture, whereas you may not require as much output for your stained glass work. 

If you have a precise lumen target for your lightbox, it might be helpful to know that the 2 ft T5 Linear Light fixtures have a lumen output of 900. 

6500K LED Lighting for Dental Office Remodel

I'm interested in color correct 6500 Kelvin LED lighting for a dropdown ceiling in a 3000 sq ft dental office remodel.

In the interim, you may be interested in our CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free T8 LED Tube Light, which is available in the 6500K color temperature and provides full-spectrum high CRI light output. 

You might also find value in our Lumen Estimation Calculator, which can provide recommend quantities of light products based on the dimensions of the office. 

Proper Lighting for an Art Studio

I recently renovated my art studio & I am seeking your advice on selecting some lighting. The studio is 100 sq. ft. (10' x 10') with 8' ceiling height. I have added an (L-shaped desk) with shelving above. The length of the desk is 6' x 4' & shelves are 24" above the top of the desk. Shelf brackets are made from black gas pipe & are 16" in the center.

I do have a window in the room with some natural light put is not north facing. I need your advice on (5000K or 6500K) for the linear light fixture above the desk area as I do some of my artwork on this desk as well as the drafting table. The linear fixture indicates that it has a 12" power cord that you can plug into a wall outlet. I do not have enough length to plug into the outlet, so could I use a small extension cord plugged into the 12 " power cord on the fixture then plugged into the wall outlet?

Generally speaking, in the event that you hope to match the available natural daylight, we would recommend the 6500K option. This option would likely assist in supplementing the moderate amount of light available from the studio window. 

Please feel free to take advantage of our 30-day return policy as well, in the event that you would like to try both color options in your studio. Simply reach out, and we will gladly provide a prepaid return label for the unneeded items. 

Though the pre-included power cable may not be long enough, we can confirm that third-party power cables or extension cords can also be used with the linear lights. These products can also be daisy-chained or connected together (up to ten units), if utilizing a single power source is preferable. 

Based on my results from our Lumen Estimation Calculator, it appears that the 10x10x8’ space would be illuminated with roughly 7,963 lumens, though a lower amount of lumens may also be sufficient. For reference, the 2-ft linear lights offer 900 lumens, where the 4-ft linear lights offer 1800 lumens.

If that the linear light fixtures are to be used as the primary studio light source, you might benefit from additional lights. As such, we recommend one 4-Pack of the 6500K 4-ft NorthLux™ 95 CRI T5 LED Linear Light Fixtures.

Do you have a D65 lighting with the exact color temperature?

Do you have a D65 lighting with the exact color temperature?

We are happy to confirm that we offer many D65 products, such as the NorthLux™ 95 CRI T5 LED Linear Light Fixture and the ABSOLUTE SERIES™ LED Flexible Strip product. 

For more information regarding the D65 photometric reports for each item, please reference the downloadable PDF files found on each product page. For additional details regarding the D65 ISO standard, we have shared an informative document from our website below which I hope proves to be helpful. 

What is D65 and what is it used for?

Will the present absolute LED series support color measurements?

For more information regarding the color output of the D65 products, we would recommend reviewing the photometric data page. 

I am also curious to know whether you have a similar daylight source in the form of a fibre optic source.

We can confirm that we currently do not sell our D65 products in the fiber optic form factor. 

Will you be able to provide us with a sample say 10 cm for our initial trials?

We are not able to provide product samples, and I do apologize for any impact this might have on your purchasing process.

Can we also control the intensity of the LED source? If so, what would be the maximum and min Lux measurements

When pairing the LED strip lights with a compatible controller such as our FilmGrade™ DMX LED Dimmer & Decoder with 5 Channel Output, the output can be controlled with granular precision. 

Could you also please share the applications in industry where they are utilizing the same?

Unfortunately, we're not at liberty to disclose the requested industry details. 

Spectral Data of Absolute Series 99 CRI LED Strip

I am inquiring about data for your Absolute series of LEDs, specifically the 6500K versions. I would like to know if there is a spreadsheet available with the spectral data of the LEDs in the format of wavelength vs. spectral irradiance/intensity to compare with the spectral graph of sunlight. If there are other products/product lines that you sell that would be more useful for my purposes (replicating sunlight as closely as possible for simulation purposes) please let me know that as well. 

Attached are the 5000K and 6500K spectral power distribution for the ABSOLUTE SERIES LEDs (both modules and strips use the same LEDs and therefore have the same SPD data).

7001.50_SPDDownload 7001.65_SPDDownload

​If you are looking for a light source that best approximates natural light, the ABSOLUTE SERIES would indeed be the best option. Strictly speaking, 5000K may be a better match for natural sunlight, whereas 6500K would be a better approximation for natural daylight.

I was wondering if you had data on the size of the module/strip used to gather this data as I need it to do some calculations.

The data provided has irradiance values in arbitrary units, so I'm afraid the SPD values would not be helpful in performing any irradiance calculations.

​We do have some test reports here indicating 3165 lux from a distance of 12 inches from our ABSOLUTE SERIES LED modules. This may be a helpful baseline measurement for extrapolating irradiance values.

D65 "Task" Lighting for Work Stations

I have a customer asking for D65 "task" lighting for work stations in a large warehouse. The area in question performs a "cosmetic inspection" of product(s). They are specifically asking for a 4' something-or-other.

We can recommend the 99 CRI D65 ABSOLUTE SERIES™ LED Flexible Strip product.

Below is the related article for the Absolute Series LED Strip

High CRI 6500K bulbs for Digital Photographic and Color Matching Applications

I need a few Hi CRI, 6500K bulbs for 2 separate uses:

1) Digital photographic slide capture and then editing on a 6500K color-corrected monitor. I have one of your 6-inch, white sample LED strips to try for lighting behind the monitor. I need Edison bulbs for indirect room lighting. I've looked at your website and found a few 6500K CRI >90 bulbs that might work, including some with high R-9 ratings. Do these bulbs need to be D-65 rated? What is your recommendation for this use?

2) Color-matching fabrics and buttons, etc. Can I use the same type of bulb or is a D-50 bulb more appropriate? Suggestions?

I noticed several dimmable Hi CRI bulbs listed, but I could not find their R-9 rating. Can use 1 & 2 be accomplished with a dimmable bulb, or does that add too much variability to the lighting?

As we currently do not offer 6500K filament bulbs at this time, we might alternatively recommend the Sidewinder™ LED Flex Strip for D65 Bias Lighting product, which is D65 calibrated and designed for bias lighting for monitors intended for color-correction.

Regarding the benefits of D65 vs D50 for your fabric sample color matching purposes, I have provided two links below from our blog, which each include sections comparing the benefits of the two for working with color. 

​Regarding the R-9 value, the specification sheets and photometric reports linked within each product page will be able to provide the R-9 output details.

What is D50?:

What is D65?:

I'm confused by the photometric test reports, or perhaps I don't understand your part numbering system. This makes it look like the D-50 calibrated bulb is the same as the Centric 5000K bulb(based on the report PDF) and the same as the NorthLux 5000K bulb based on the web page part number listing.

We can confirm that the D50 5000K A19 LED Bulb for Color Matching (ISO3664:2000) product and the 5000K NorthLux™ 95 CRI E26 A19 LED Bulb for Art & Studio are identical products which are provided unique landing pages for marketing purposes. This can be noted by the shared part number of 4005.D50.

As such, you can expect that the performance will be identical across both items. We would like to sincerely apologize for any confusion that this might have caused.

Absolute LED Strips with PSU and Dimmers for Photographing Fabrics

I´m thinking about ordering two Absolute LED strips with PSU and Dimmers for photographing fabrics. Also 8 LED bulbs. 

I just bought a Aputure 300x bi-color LED (300w) fixture and although it's a very nice and flexible LED I'm not happy with the green tint at daylight and the yellow tint at low kelvin settings. I guess one Absolute 6500 k LED (5 meters) and one Absolute 5000 k LED (5 meters) would be great for getting both a nice working light and two dimmable lights at slighty different tempetures, right? (I have soft boxes for diffusion).

Based on the details provided, we believe that the 5000K and 6500K Absolute series LED strip lights could great options for your photography installation.

As alternatives, you might also be interested in the FilmGrade line of LED strip light products, which are available in the 3200K and 6500K color temperatures, which are often used for photography and film capture.

For flicker-free, dimmable installations, the aforementioned LED strip light products are often paired with the FilmGrade™ DC Power Supply for LED Strip (compatible with global input voltages of 100 - 240V AC, 50-60Hz) and the FilmGrade™ Flicker-Free LED Dimmer product. Please note that we recommend ordering a power supply and strip lights of matching voltage (12V or 24V) for compatibility.

If I would want some more power than what I’m getting from one 5 m absolute led, what would you recommend? I want the cleanest colors

We're happy to confirm that the Absolute Series of products offers the most color-accurate output among the items in our catalog. As the product offers a CRI of 99, the light output will be virtually indistinguishable from natural daylight.

We have provided a link to the product photometric report below, which contains data on the output produced.

5000K Photometric Report:

6500K Photometric Report:

We can also confirm that the 16.4 ft (5 meters) Absolute Series LED strip light offers 1250 lumens per foot, for a total reel output of 20,500 lumens. If more lumens are required for your installation, we may recommend purchasing more than one reel.

Could you suggest a LED bulb to look at the exterior house paint colors?

Could you please suggest a bulb for me to look at the exterior house paint colors? swatches (indoors, of course). Could you please suggest a bulb I would use to look at exterior house paint color swatches? 

Based on the details provided, we might recommend the 6500K NorthLux™ 95 CRI E26 A19 LED Bulb for Art & Studio product, as the D65-calibrated high-CRI output can closely simulate north-facing daylight.

If a more neutral daylight color is preferred, we would then recommend the 5000K color temperature of the same product.

Recommended Light for High-End Color Grading Room Bias Lighting

I am a film colorist at Technicolor Postworks NY and we are building out several rooms for which we need very high-quality D65 bias lighting. It needs to match the output of a Sony X300 reference display outputting D65 light that will be falling on a wall painted with GTI N8 Munsell gray paint. We are looking at FilmGrade White, FilmGrade 5in1, or ColorSpace RGB tunable, or potentially a combination of both, for example, one strip of Filmgrade white and one strip of RGB tunable to be able to trim. We do not need the flexible/black PCB mount as this will be hidden. What would you recommend as the best product for us? 

Based on the details provided, we might recommend a combination of the 99 CRI ABSOLUTE SERIES™ LED Flexible Strip for high-quality D65 output, as well as the ColorSpace™ RGB Color Changing LED Strip Lights.

Alternatively, in the event that having Tungsten output is beneficial for the installation, we might recommend the FilmGrade™ FiveSpect 5-in-1 LED Strip Lights instead of the ColorSpace RGB product.

Color Accuracy Bulb for Building a Lightbox or Photo Booth

I was interested in a few of the products you guys sell and was wondering do you guys have a flicker-free high CRI bulb with a color temp of 6500k. I went through the bulbs and am still confused about all these options. I was looking at 4005.D65 4005.65, and some of the other NorthLux and centric series and wasn't sure what would be best for color accuracy, I am building a lightbox/ photo booth for checking the color accuracy of plastic samples.

Based on the details provided, I would recommend the 6500K (D65) NorthLux™ 95 CRI E26 A19 LED Bulb for Art & Studio products, which I can confirm as being flicker-free. 

​This product is also designed to conform to the ISO D65 standard, which is beneficial for installations that require an extremely low variability in light output.

If you would like to purchase a few of the options previously mentioned to make direct product comparisons in your space, please feel free to take advantage of our 30-day return policy. Simply reach out to let us know which items you would like to return, and we will quickly issue a prepaid return label.

Is the NorthLux™ 95 CRI BR30 LED Bulb also flicker-free? And are the specification and other product documents available to look at?

The NorthLux™ 95 CRI BR30 LED Bulb for Artwork & Studio, as well as our other BR30 bulbs, share a 6% flicker rate. Though not totally flicker-free as our A19 bulbs family of products are, it does offer a fairly low flicker rate.

In the interim, I have provided a link to the product specification sheet below, which I hope proves to be useful:

BR30 Specification Sheet:

Recommended Lighting that Best Resembles Daylight

I am working on trying to find the best lighting for a test I am working on. Basically, I need to find a light that best resembles daylight due to the regulation I working on. It looks like the 99 CRI could work but I was wondering if the conditions make sense. 

We're happy to confirm that the 99 CRI ABSOLUTE SERIES™ products produce light output which is extremely similar to daylight. 

It might also be helpful to know that we offer a 30-day return policy for all orders. If these products wind up not being the right fit for your tests, simply let us know and we would be happy to issue a prepaid return label so that the items can be returned for a refund.

Can you please provide the photometric reports? I believe this will greatly help me in my decision on finding a product that could work for my testing. Also, is there anything special I would need to purchase to use the bulbs (ie certain setup or can I put in a normal lamp?)

We have attached the links for the 99 CRI photometric reports below, as requested. Please note that, unlike our traditional A19 and BR30 bulbs, these products are not designed for standard lamp bases, and will require additional power supplies such as the 12V FilmGrade™ DC Power Supply for LED Strip.

ABSOLUTE SERIES™ LED Linear Module - 99 CRI - 1 ft / 280 mm MCPCB:

ABSOLUTE SERIES™ LED Flexible Strip - 99 CRI - 16 ft / 5 m Reel:

5000K Photometric Report:

6500K Photometric Report:

High CRI LED Strip Lights for Light Boxes

I have a design client that I'm working with on a living room update. The short story is that a series of 5 clerestory windows have had to be covered over because of a roofing change. I'm looking at the idea of converting the 'empty' overhead windows into lightboxes using high CRI-led strips to simulate the same overhead lights. I'd appreciate some guidance to make sure I spec the right products. 

Based on the details provided, there are a few different products that we might recommend.

If your client would like to simulate the different stages of natural daylight, we might recommend the FilmGrade™ HYBRID LED Strip Lights product, which can be controlled remotely to achieve any color temperature between 3200K and 6500K.

This product can be controlled and adjusted using several different methods, such as an RF remote or Bluetooth app, which are described in the following article:

Alternatively, if a single color temperature output is preferable then we might recommend the FilmGrade™ WHITE LED Strip Lights.

High CRI LED lighting for Photographic Printmaking

I am a professional printmaker for photographers who sell their work in galleries. I also produce prints for museum exhibits and corporate photography installations. I am building a new print-making studio. I would like high CRI lighting for my print viewing/color-correcting area. I need 5000K Hi CRI (95 or higher) for color correcting as well as 2700K and 3000K high CRI to view prints for how they will look under gallery or museum lighting. I would prefer to have one light source to be able to produce all three color temperatures. Each color temperature would be used one at a time. Which of your products would work best for my application?

Our high CRI LED lighting offerings sound like a great fit for both the color viewing (D50 / 5000K) as well as gallery/museum lighting conditions (2700K/3000K).

​Unfortunately, we do not offer any products that feature the ability to switch between those color points, so we would instead recommend installing separate lamps for each of the color points needed.

​For the D50 / 5000K color point, our line of NorthLux or D50 products will work well for your needs. For example, please see below for our A19, T8 lamp or T5 fixture options:

Our 2700K and 3000K are a bit more limited in form factors. Below is our A19 and BR30 lamp option:

If you can let us know a bit more about the lighting installation in terms of fixtures and location, we'd be glad to assist with some additional recommendations and guidance!

Will your T-8 NorthLux 95 CRI LED tubes operate with a dimmable ballast allowing me to dim the output and still maintain the same color temperature and color rendering index?

Unfortunately our T8 LED lamps are not dimmable, and will not work with a dimmable ballast. Sorry for the bad news!

Absolute Series D65 LED Flexible Strip for Color Matching

Can your Absolute D65 modules be used for color matching? I see you offer D50 T8 lights for color matching, however, we require D65 for textiles. Do you have any plans to offer this light in D65? 

We're happy to confirm that our 6500K ABSOLUTE SERIES™ LED Flexible Strip product is D65 Illuminant-compliant, and can be used for color matching.

We can also confirm that the 6500K NorthLux™ 95 CRI T8 LED Tube for Art & Studio product is compliant with the D65 Illuminant standard as well.

LED Lighting Suggestion for Photography

I am looking for an equivalent of 50 W bulb D65 to screw in (for a dim room lighting 8'x13'x8'), another one around 75-80 W D50 also to screw into my desk lamp to hard proof my prints, and another one of around 3700K also for prints evaluation. 

While we, unfortunately, do not offer D65 bulbs that would into traditional lamp fixtures, we do offer the D65 ABSOLUTE SERIES™ LED Linear Module product, which might be an alternative depending on your installation.

We also offer the D50 5000K A19 LED Bulb for Color Matching (ISO3664:2000) product, as well as the D50 5000K T8 LED Tube Lights for Color Matching (ISO3664:2000) product, which may also be worth consideration. However, these D50 calibrated products are currently only available in the 5000K color temperature.

If I understand correctly, your lights are “full spectrum” eg 6500 K seems to be not far away from D65. Would it be wrong, if my display is on D65, to use one of your bulbs for my ambient light? centric? Northlux? Ultrahigh 95 jewelry? Avian? I do not see any difference between them except that one of them is Flickr-free but same price. 

If this does not work (800 lm could be too bright), and those LED are not dimmable without any further installation, another option could be bias lighting. I have an NEC PA302W: it is a 27.1 x 18 monitor on a stand. Should I use the sidewinder reels? How many? I understand a portion of 24” horizontally, and half of a foot on both sides with 1 reel. Will it be OK like that? Will it be necessary to use a dimmer? I have a black curtain on my window, so it is pretty dark when the door is closed.

We're happy to confirm that the majority of our products are indeed a full spectrum.

Further, we can also confirm many of our products are quite similar. If you have a specific set of products in mind to compare, I would be more than happy to explain the differences between them.

Regarding bias lighting, the Sidewinder™ LED Flex Strip for D65 Bias Lighting product could be a great option for your space.

Based on the measurements provided of your monitor, we recommend two 3.2 ft (1 meter) units of the Sidewinder™ LED Flex Strip product to wrap the back of the display in lighting, depending on the layout that you choose for installation.

This product can also be paired with a dimmer, in the event the level of the emitted light is too bright for all use cases. We recommend pairing this product with the 24V DC power supply, as well as the FilmGrade™ Flicker-Free LED Dimmer product.

I am looking for a D65 bulb for the ceiling but that will be probably too bright as ambient light and this will send some light directly to my computer screen. Moreover, they are non-dimmable or necessitate an installation too complex for me. Anyway, there is a bulb over there, and I will choose one which is adapted; I am a photographer. Flicker-free? 

1. What is the difference between the lights?

Based on the details that have been provided of your space, the A19 bulb that I would primarily recommend would be the 6500K NorthLux™ 95 CRI E26 A19 LED Bulb for Art & Studio product, which was designed to be D65 Illuminant-compliant. This means that the product strictly aligns with a global standard designed for color work. However, please note that while many of our A19 bulbs are flicker-free, none of the A19 bulbs previously mentioned are dimmable. As such, these products may not be beneficial for your space.

That being said, we can confirm that some products are indeed the same item, such as the CENTRIC DAYLIGHT™ A19, as well as the Ultra High 95 CRI A19 bulb. This can be noted by the shared product number, listed as PN 4005.65. This is also true for some other products that we offer. 

​We do apologize for any confusion which may have arisen, as these products appear on multiple pages for marketing purposes.

2. How to connect the 2 strips: daisy chain? connectors?

We're happy to confirm that the Sidewinder™ LED Flex Strip product is designed with plugs on each end of the reel, which allows for the product to be daisy-chained together without additional hardware. I have attached a photo of the product, which may prove to be helpful. That being said, please note that a compatible 24V DC power supply, such as our FilmGrade™ DC Power Supply for LED Strip product, would still be required.

3. What do you mean about “depending on the layout you choose for the installation”?

We do apologize for any confusion caused by my wording. Some bias lighting is installed as one horizontal strip behind the monitor. If this was the installation that you would prefer, we might recommend one unit of the Sidewinder product.

Alternatively, we have seen other bias lighting installed as three strips of lighting. Two vertical strips are applied to the back of the monitor parallel to the sides, and one horizontal strip is applied to the back of the monitor which runs parallel to the top. If this is the installation that you would prefer, we might recommend two units of the Sidewinder product.

6500K Flicker-free Lighting for Art Capture, Color Correction and Fine art Printing

I perform art to capture, color correction, and fine art printing. I am using Ikan Lyra LEDs at this time but not so happy with their results. They are okay, but I am looking for 6500K lighting, also flicker-free. I see you have bulbs and strips. 

We suspect that the primary reason for the difficulty in judging color differences is due to an incomplete spectrum emitted by the Ikan product. Specifically, this will likely be reflected in a low CRI value, possibly in the 80-90 range. (You may also want to look into the R9 value, which provides even more data about red color rendering in particular).

As a starting point, we would recommend experimenting with a few of our 95 CRI products. Here are the A19 bulbs which are daylight calibrated to D50 (5000K) and D65 (6500K) with a 95 CRI rating and would be a great starting point for your tests:

If you would like to consider our LED strip lights, we would recommend our FilmGrade LED strip lights which are offered in both 5600K and 6500K:

Our 5000K LED strip lights (also in 95 CRI) are listed under our retail & commercial section:

Installing the LED strip lights will require a bit of additional assembly and installation work. For additional guidance, we recommend referencing our layout maps which can be found at the link below:

​Finally, ​we would recommend taking advantage of our returns policy to test out several of the color temperature options and determine if our products do indeed offer an improvement over your current setup. The full policy can be found below:

Difference between NorthLux™ 95 CRI E26 A19 LED Bulb for Art & Studio and CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free A19 10W LED Bulb.

I'm intending to purchase 6500K lighting of either NorthLux™ 95 CRI E26 A19 LED Bulb for Art & Studio (4005.D65) or your CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free A19 10W LED Bulb (4005.65). Can you please provide clarification regarding what further differences exist between these two products?

The primary difference between the NorthLux and the Centric Daylight is that the NorthLux has chromaticity points calibrated to D50 and D65 color points, for the 5000K and 6500K versions, respectively.​While the Centric Daylight also offers 95 CRI, the exact color point is not as precise.​If you are looking for a color point that matches ISO standards, we would recommend the NorthLux / D50 product lines.

What is the difference between CENTRIC DAYLIGHT™ 5000K/6500K and D50/NorthLux™?

Several of our products are listed on multiple product pages for marketing purposes. This is also the case for the CENTRIC DAYLIGHT™ (5000K/6500K), D50 and NorthLux™ product lines.

The 5000K products below are the same underlying product:

PN 4005C.50: CENTRIC DAYLIGHT™ 5000KPN 4005C.50: D50PN 4005C.50: NorthLux™ 5000K

The 6500K products below are the same underlying product:

PN 4005C.65: CENTRIC DAYLIGHT™ 6500KPN 4005C.65: NorthLux™ 6500K

All of these products are calibrated to the D50 and D65 color standards for color viewing and other vision-critical applications at 5000K and 6500K, respectively. These products are all great lighting solutions for professional or color-critical applications, as well as specialty indoor lighting applications such as light therapy.

Note: this product page was updated in November 2021 to reflect the most recent changes to our product specifications and offerings. For customers who purchased these products prior to 2021, please reference the archived article here.

[Archived] What is the difference between CENTRIC DAYLIGHT™ 5000K/6500K and D50/NorthLux™?

[ARCHIVED ARTICLE] This article has been archived as of November 2021 due to recent changes in our product specifications. Please see this article for the most up-to-date information on our current offerings. Customers who purchased our lamps prior to 2021 (lamps marked with PN 4005.XX rather than PN 4005C.XX) can continue to reference the archived information below.

Several of our products are listed on multiple product pages for marketing purposes. One major exception is our 10 watt A19 bulb product line, for which we offer the two part number variants for each of the 5000K and 6500K color points:


PN 4005.50: CENTRIC DAYLIGHT™ 5000KPN 4005.D50: D50 / NorthLux™ 5000K


PN 4005.65: CENTRIC DAYLIGHT™ 6500KPN 4005.D65: NorthLux™ 6500K

You will notice that the D50 and NorthLux™ product lines have a "D" prefix in the color temperature designation inside the part number. This signifies that these products are calibrated to the D50 and D65 color standards for color viewing and other vision-critical applications at 5000K and 6500K, respectively.

The CENTRIC DAYLIGHT™ products are also available in 5000K and 6500K, but they are not designed for color viewing applications. Specifically, they have a slightly greener tint (elevated Duv values), which is a closer approximation of the ANSI chromaticity targets for daylight color points.

In short, if you're looking for a lighting solution for a professional or color-critical application, we recommend the D50 / D65 designated NorthLux™ lamps. On the other hand, if you're using the lamps for indoor lighting such as light therapy, the CENTRIC DAYLIGHT™ lamps will be a great option.

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