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Home /  Support Center /  Knowledge Base /  Ultraviolet (fluorescence, blacklights)

365nm UV LED Lights for Exposing Photo Polymer for Braille Signs


I'm wondering if these will work for exposing photo polymer for braille signs. The manufacturer recommends 350 nm.

We unfortunately do not have any data on photo polymers for this specific application, but do suspect that there may be some cross-compatibility between 350 nm and 365 nm.

I would perhaps recommend testing and taking advantage of our free returns policy. If for whatever reason you find that the LED bulbs are not going to work for your project, we would be more than happy to pay for return shipping and offer a full refund. 

Any Ideas to temporarily mount 32" to a metal plate?

The one idea I can think of would be to see if a small section of the photopolymer cures effectively under a single row of the UV LED strip light. This of course would not be the same as the final installation, but may be helpful in getting an approximation on cure times and proof of concept.

Do you have a way off measuring Milli Watts/Square Meter Irradiance of the lights at 2" inches away?

Please see below for our irradiance charts. 

https://www.waveformlighting.com/photometrics/BP_7021.pdf

Our closest measurement was from 12 inches, where we observed 228 µW/cm². This is equal to 0.228 mW/cm², or 2,280 W/m².

While we do not have any measurements at 2", one quick way to roughly estimate is to use the inverse square law, which states that the irradiance values increase by the square of the distance. Therefore, at 3" away (1/4 the distance), we would expect a 16-fold increase in the irradiance values.

UV-A LED Light Irradiance and Black Panel Temperature


I have a customer that wants to run a UV test on their product. Their requirements are 1) Black Panel: 60C 2) Air Temperature 38C 3) Humidity: 50% 4) Irradiance: 0.6W/m2. Do you have a product that will give me the irradiance and black panel temp I need?

Our 20-watt UV flood light may be a good fit for you here. The product has a measured irradiance of 650 µW/cm² or 6.5 W/m² at a distance of 12 inches. 

Please see below for additional information:

https://www.waveformlighting.com/photometrics/BP_7022.pdf

​We do not have any data on black panel temperature but believe that the product will remain well within the 60-degree C requirement. The product is rated for humid environments and the 50% rating should not be an issue.

UV-A LED Strips to Expose Photopolymer Plates


I am looking for UV LED strips that allow me to expose Photopolymer plates that are sensitive to 365nm wavelengths. My application calls for about 15-20 meters. The LED Pitch should be higher than 60 and preferably 120-130. Is there a specific model I should be looking at? Do you have standard and high-output versions? 

We are happy to confirm that the LED density per meter of our 365nm realUV™ LED Strip Lights product is 8.3 mm. It might also be helpful to know that this product has a 120-degree emission angle.

For more information on the products, you might find value in the product specification sheet and photometric reports, which I have linked below.

Specification Sheet: https://www.waveformlighting.com/datasheets/CS_7021.pdf

365nm Photometric Report: https://www.waveformlighting.com/photometrics/TR_7010.365.pdf

365nm real UV-A LED Rechargeable Head Torch


We are seeking a rechargeable head torch of this specification order strip light/tubes of the same specification for use in the UK. Could you assist/recommend a product?

Based on the details provided, we might recommend the 365nm realUV™ LED Flashlight with BLACKOUT™ Filter Technology product. 

However, please note that the battery option is not available for shipping to all territories, given the international air freight restrictions on batteries. As such, we would likely recommend the ‘no battery included’ option for your UK destination order.

For more information regarding this product, we hope that the below article from our website proves to be helpful.

Everything You Need to Know About UV Flashlights: https://www.waveformlighting.com/tech/everything-you-need-to-know-about-uv-flashlights

Do realUV™ LED Lights have rainbow lights too?


This might be a silly question but I’m a little confused. Are these lights just black lights or do they have rainbow lights too?

We can confirm that our realUV™ LED Strip Lights are specifically designed to output ultraviolet light wavelengths, whereas other 'ultraviolet' products have been known to simply pair red and blue LEDs to create a purple-colored light output.

If you were hoping to include an RGB LED strip light product in your installation, we might recommend the FilmGrade™ FiveSpect 5-in-1 LED Strip Lights. This product can be combined with third-party controllers or our 'FilmGrade™ DMX LED Dimmer & Decoder with 5 Channel Output' product for color configuration.

For more information regarding our LED strip lights and the realUV™ products, we have provided links to two helpful blog posts from our website below.

LED Strip Lights: Everything you need to know before you buy

https://www.waveformlighting.com/led-strip-lights

realUV™ LED Lights

https://www.waveformlighting.com/real-uv-led-lights

UV LEDs for Wildfire Painted Artwork


What would you recommend for an LED UV strip with an av 110v power plug-in or battery-powered supply? For a painting with UV and acrylic artwork to go around the canvas perimeter. To switch from natural light to UV light.

Based on the details provided, we might recommend our 365nm realUV™ LED Strip Lights. As most fluorescents are strongest within the 320-380nm range, we believe that this product would allow for the most effectiveness in your photography.

As this product utilizes 4.5 watts per foot, an entire 16.4 ft (5 meters) reel should only utilize 73.8 watts in total. As such, the 110-watt power supply should be more than sufficient.

Black Light with Fluorescent and Blue Visible Light for Pool Setting


I want both a strong "black light" color pop with fluorescents, but also some nice "blue visible light" to accent a pool setting. The product likely needs to be waterproof or water-resistant at least as it will be mounted outside for about a week. Some illumination of the area would actually be nice but still want some good black light effect. Also, do you have a submersible pool light option?

Based on the details provided, we might recommend the 395nm realUV™ LED Flood Light product, as it would emit more visible light than the 365nm version while still offering fluorescence effects.

For more information regarding the differences between the two options, the below article from our website might prove to be useful.

What is the Difference Between 365 nm and 395 nm UV LED Lights?: https://www.waveformlighting.com/tech/what-is-the-difference-between-365-nm-and-395-nm-uv-led-lights

However, please note that while these products have an IP65 rating, they are not designed to be submerged.

Do you have an RGB+W led light strip that is suitable for outdoor use?

While we do offer products such as the ColorSpace™ RGB Color Changing LED Strip Lights, these products are unfortunately not designed for outdoor use, or for installations where they may come into contact with water or moisture.

UV-A LED Strip Light to Glow a Painting Studio


I have approx. 10×10 room with a 2×4 panel drop ceiling - black acoustic) I would like to have independent white and fixtures or another way to control white and UV independently. I plan on filming in there so need lots of white light preferably on a dimmer. The blacklight/UV would be useful to have both 365nm and possibly another wavelength (this is one major question) I'm using strontium aluminate pigments but maybe it might help to have another wavelength in there as well. The wall switch can be changed, in fact, everything is open with bonus points if I can control them via remote control. 

The closest alternative option would be to incorporate our LED strip lights, which are offered both in 365 nm UV-A as well as in various color temperatures in white. This would require some rewiring and modification of the fixtures as well as familiarity with low-voltage wiring systems.

Based on what you are looking for, the Lutron Caseta remote control system to control our LED strip lights may be a great option for you. (See article here: https://www.waveformlighting.com/home-residential/dimming-led-strip-lights-and-led-bulbs-using-smart-lighting-systems)

I just need advice what to put on the switch or if there's a primary fixture for the dimmable bright white lights with the ability to daisy chain for power only to the UV. If 10,000 lumen is overkill that's beyond overkill (I plan to keep it dimmed, but would like option of brightness for the microscope) I can be flexible.

We do not have any fixtures that would meet your needs, so everything would need to be a custom build / installation on your end.

​Our LED strip lights can be a viable option and can be connected to a wall dimmer as shown in the layout chart shown in the link below:

https://www.waveformlighting.com/layoutmaps/3001_1C

​​I've input your room dimensions in our lumen estimation calculator (https://www.waveformlighting.com/lumen-calculator) and the 10,000 lumens would provide you with roughly 100 footcandles across the space. This is certainly on the high side but may be preferred or even needed, depending on how much light you are looking for your film and photography needs.

Each 1 ft section of the white LED strip lights emits approximately 450 lumens, so you would be looking for approximately 22 ft of LED strip lights to achieve 10,000 lumens.

Outdoor UV LED Blacklight Sign Lighting


I'm working on lighting up a music venue sign with blacklight LED strips. The strips will be under a metal awning. Do you have a UV blacklight, weatherproof, LED strip?

Although our UV LED strip lights would be a great fit for a backlight sign, they are unfortunately not waterproof so even for use under an awning, they would not be a good option for outdoor use.

​Our UV flood lights, however, are IP65 rated and can be used outdoors. I'm wondering if this might be a viable alternative product that you may want to consider.

​We've included the product link below for your reference:

https://store.waveformlighting.com/products/realuv-led-flood-light

UV-A Flashlight for Pet Stain Solution


I was wondering how visible dog stains are with your UV light in normal house lighting with lights on and how far the beam reaches. 

Our UV flashlight at 365 nm is a great wavelength for observing fluorescence effects. Pet stains are quite reactive to UV wavelengths and our product would be a great option for your needs.

​The beam reaches more than 15 feet, so the product should be more than sufficient for inspection of standard indoor spaces.

UV-A LED Strip Lights for (Gum Bichromate) Photo Printing Processes


I am trying to construct a UV exposure unit for historic photo printing processes (gum Bichromate). I think the best wavelength is 365 nm because it is firmly in the UV window. Do you have any experience with this application for UV LED? I think I will need a 5 m reel to adequately cover a 20x24” surface. The distance to the image from the lights would be about 6”. Would you be able to suggest the maximum gap between strips that provide even illumination? Could you recommend a power supply that I could order at the same time that is sufficient for the 5 m of the LED? 

Our UV LED strip lights sound like a great option for your installation. While we do not have any data or specific recommendations for the gum bichromate process, we agree that the 365 nm wavelength should be a good fit based on what is generally known about its sensitivity to UV wavelengths.

The 5-meter length (approximately 16 ft) should be sufficient for the installation surface. Based on a 24" width, you could, for example, install eight sections of 2 ft each. 

To ensure even coverage, we generally recommend spacing the LED strips no farther apart than the distance away from the irradiance surface. In other words, for your installation, the LED strip sections should be placed no farther than 6 inches apart.

​Our 12-volt power supply has sufficient power capacity to operate a 5-meter reel of UV LED strip lights.

Finally, I've included a link to a layout diagram for a similar configuration, which may be helpful:

https://www.waveformlighting.com/layoutmaps/7021_4C

I plan on cutting and soldering the sections together with the wire. Is there any specific wire that you would recommend for this application and the current? Over the 5m is there much of a voltage drop and corresponding drop in UV power across the length of an LED?

The primary thing to look out for when soldering the sections together is to use wire with the sufficient thickness (gauge). Our 16 AWG wire, for example, would be a great option for connecting the LED strip sections together. Please see below:

https://store.waveformlighting.com/products/16-awg-wire

​In terms of voltage drop, we do not see any significant decrease in UV across the 5-meter run, as long as the connections between the LED strip sections are made securely and with wires of sufficient wire gauge. 

If consistent UV intensity is a significant concern, however, we may recommend powering the LED strip running from both ends, thereby effectively reducing the max run length to 2.5 meters each.

Can a UV Flood Light be made available with a VIS-blocking filter?


Can this be made available with a VIS-blocking filter per your UV flashlight?

We do have a new UV flood light model at 50 watts with the Blackout filter that is used on our flashlight.

Does the filter have an IR leak? (As do the Wratten 18A and the equivalents)?

We do believe that the filter does allow IR to pass through.

Therefore, depending on the sensitivity of your equipment, incorporating an additional IR filter may be required.

​We would imagine, however, that the infrared produced by the UV LED would be limited to the thermal radiation component only (as the LED chip itself heats up), as all of the radiometric output would be confined to the UV-A band.

How safe is UV-A LED Light?


I am considering realUV™ LED Strip Lights in a custom bookshelf to make some vaseline glass fluoresce. I read on your site that 365nm is better than 395 for this application. How safe is UVA? I thought about putting the fluorescent items and LEDs behind the glass (which I know *passes* UVA) and applying a UV-blocking film to the glass which would pass the visible fluorescence. Is this kind of protection necessary? Is there a distance from the LEDs where the amount of UVA hitting a person would be negligible?

Our UV-A LED strips sound like a great fit for your vaseline glass fluorescence project!

Both the 365 nm and 395 nm wavelengths fall under the UV-A wavelength range, which is a weaker form of ultraviolet radiation that is found in natural daylight so there are fewer concerns than other ultraviolet products that fall under the UV-B or UV-C wavelength ranges, for example.

​That being said, below are some general safety guidelines that we would recommend following:

The ultraviolet emitters have a very high intensity when used at a very short distance, but less so at longer distances. Therefore, ensuring that people or animals do not come close to the UV source can help reduce the risk of any eye safety issues.Ultraviolet energy is mostly invisible to the naked eye. It can be difficult for the vision system to recognize a high level of UV "brightness" and produce a natural response to squint or look away, in the way that natural white light would.

UV exposure is usually not an issue as long as a reasonable distance is kept between the UV source and human skin and/or eyes, and as such, we do not anticipate any significant safety risks arising from the proposed installation. We recommend consulting a UV safety expert if you have any further concerns.​

365 nm UV Lighting for Imaging Failure/Cracks


I'm looking to know if you might have any 365 nm UV lighting that could be of assistance for the detection of cracks/failures when imaging (using a Canon camera set for UV conditions). 

We, unfortunately, do not have any test data or literature for the application you mention, but we do expect that our UV LED products are well suited for installations that require the use of UV to visually inspect and fluorescence effects. In particular, we would recommend our 365 nm version over the 395 nm version, as this provides additional visual contrast of fluorescence effects without as much visible, purple light.

We would perhaps recommend testing and taking advantage of our free returns policy. If for whatever reason you find that the LED lamps are not going to work for your project, we would be more than happy to pay for return shipping and offer a full refund. 

UV-C LED Strip Light for Fluorescent Mineral Display


I want to install UV shortwave lighting for my fluorescent mineral display. The minerals are on two shelves, each about 30 inches long and 6 inches wide. I believe the UV-C LED strip light will work. I am planning to buy the Filmgrade DC power supply. Is that the right power supply for what I want to do? How do I hook up the two strips (each 1/2 segment of the original)? Is there a way to do this without having to buy two power supplies? 

I am happy to confirm that the 12V FilmGrade™ DC Power Supply for LED Strip is indeed compatible with the realUV™ LED Strip Lights.

Please feel free to utilize our return policy, if the realUV™ LED Strip Lights wind up not working well for your mineral display. For your testing purposes, please note that we are unable to accept returns for LED strip light products that have been cut or altered, including the removal of the adhesive liner.

Regarding installing multiple strips, there are a few configurations that might work for your installation. I have provided layout links below which illustrate these configurations further. To utilize two strip segments powered by one power supply, you may benefit from using the LED Strip-to-Strip product.

LayoutMaps™ - LED Strip Light Layout 7021_4B: https://www.waveformlighting.com/layoutmaps/7021_4B?px=-2278.5&py=-2245.5&pw=1557&ph=1491&s=0.1

LayoutMaps™ - LED Strip Light Layout 7021_4C: https://www.waveformlighting.com/layoutmaps/7021_4C?px=-2278.5&py=-2245.5&pw=1557&ph=1491&s=0.1

Do I have to unroll the entire LED strip to test it? I would like to test it using just half the length, then test using just 15 inches and finally test it using just 8 inches. 

Can I daisy chain two pieces (one will not have a DC connector) for my display and then use the third piece (with the second DC connector) somewhere else?

We're happy to confirm that the cleanUV™ UV-C LED Strip Light item can be removed from the reel, as well as tested without altering the product.

To daisy-chain the individual UV-C barrel jack lengths together, we sell a product called the Daisy-Chain DC Connector for UV LED Strips, which might prove to be useful.

Further, to connect the individual cut segments, we might recommend the LED Strip to Strip product.

For powering the product, we recommend a 12V DC power supply, such as our FilmGrade™ DC Power Supply for LED Strip product.

Short Wave UV LED Strip Light for Fluorescent Minerals Display


I would like to set up a display of my fluorescent minerals. Most of them fluoresce under short-wave UV which I believe is 250, not 365. In looking over your website I saw nothing at that wavelength. Did I miss it? I would really like the LED strip for my display. Given how many mineral collectors there are I would hope there is a strong market for such a product.

We currently offer the following UV wavelengths:

​395 nm:https://store.waveformlighting.com/products/real-uv-led-strip-lights

365 nm: https://store.waveformlighting.com/products/real-uv-led-strip-lights?variant=12339996721254

​275 nm: https://store.waveformlighting.com/products/cleanuv-uv-c-led-strip-light

The 275 nm wavelength option, while typically used for sterilization applications, may fit your needs well.

LED Black Light for Vehicle Electrical System


I'm looking for a black light strip or bulbs that can be used in a car. I have a beautiful forefoot tube with black light chips but it's made for the house and my stereo installer can't make it work. So I'm wondering if yours can be used in a vehicle's electrical system. 

While we don't have any official installation or use support for our UV LED strip lights in vehicles, our LED strip lights operate on 12 volts DC and should integrate quite seamlessly into a 12-volt electrical system.

​We've included the product link below:

https://store.waveformlighting.com/products/real-uv-led-strip-lights?variant=12339996721254

LED Light Recommendation for Cyanotype Exposure


I am looking for a light source for a photographic enlarger that will work to expose cyanotype prints. Hopefully it would be able to fit a normal sized light bulb socket and be the size of a standard light bulb to fit inside the enlarger housing. What light might work for this application?

While we do not have any official support for cyanotype applications, our understanding is that a 365 nm wavelength UV blacklight would work best.

​While we don't have a screw-in solution, our UV flood light will likely be a great, straightforward product that can be mounted almost anywhere, and simply plugs in without assembly required. Below is the product link:

https://store.waveformlighting.com/products/realuv-led-flood-light?variant=15914245521510

LED Lighting for Finding Pet Stains


I'm looking for a good light to find pet stains in the basement apartment that I rent out. Which level of light, 365 or 395, would I need? And would the flood light work well for that? Or is there a better product option?

We generally recommend 365 nm for this application, as this wavelength provides stronger fluorescence and therefore more visible contrast of the stains. For additional insights on comparing 365 nm with 395 nm, the following article may be helpful:

https://www.waveformlighting.com/tech/what-is-the-difference-between-365-nm-and-395-nm-uv-led-lights

​The flood light can be a nice option, but for a portable option, our UV flashlight may be an even better option​. Please see below for the product link:

https://store.waveformlighting.com/products/realuv-led-flashlight-with-blackout-filter-technology

UV floodlights or LEDS for Fluorescent Wood Pieces?


I've got a 12-foot-tall cedar log standing in my garage. I've inlaid several pieces of very fluorescent wood into it. I don't know which would highlight this the best, the LEDs or the floodlights. 

Our realUV LED lights sound like a great option to bring out the fluorescence effects from your fluorescent wood pieces. We would generally recommend the 365 nm option, as this version would produce less visible light but stronger fluorescence effects, which would produce a nice level of contrast for your installation.

​Please see below for the product link:

https://store.waveformlighting.com/products/realuv-led-flood-light?variant=15914245521510

UV-A realUV LED Blacklights for Body Paint Application


I am a professional artist that works in multiple medians. I recently started looking into UV body paint and will use Krylon day glow UV body paint. Will your black lights work for this right now? 

We're happy to confirm that our UV-A realUV™ LED products, such as the realUV™ LED Strip Lights and realUV™ LED Flood Light products, work well with fluorescent paints.

If it proves to be useful, here is a link to a blog post from our website, which explains the ultraviolet blacklight products in further detail: https://www.waveformlighting.com/tech/top-4-things-to-consider-before-buying-uv-blacklights

How do I daisy-chain the realUV™ 365 nm LED strip light?


I'm looking to purchase the realUV™ 365 nm LED strip. What exactly do I need in order to cut the strips and daisy chain them?

As you mention, our realUV™ 365 nm LED strip can be cut to length in 1-inch increments and is a great option for a wide variety of UV applications.

You may be interested in our PN 3071 LED strip-to-strip connector, which will allow you to reconnect any cut segments back together (i.e. daisy-chain). Please see below for a connection diagram showing an example of how this can be accomplished:​

https://www.waveformlighting.com/layoutmaps/7021_4C?px=-5247.758879792562&py=-1572.6183425460667&s=0.45241870901798

Correct UV wavelength for mineral fluorescence


I would like to use your UV lights to illuminate bornite or peacock ore. I want them to have as much fluorescence as possible. What is the correct ultraviolet wavelength for this?

We would recommend our 365 nm wavelength for your project. Many of our customers have found that the 365 nm wavelength works very well to product fluorescence in a variety of minerals and gemstones.

In general, shorter wavelength UV works best for brighter fluorescence. Longer wavelengths (400 nm and higher) tend to produce purple and violet light, reducing the strength of the fluorescence effect. As a result, 365 nm has been the most popular UV wavelength among our customers.

For more information comparing our two wavelength options (365 nm and 395 nm), please see our article here:

https://www.waveformlighting.com/tech/what-is-the-difference-between-365-nm-and-395-nm-uv-led-lights

UV LED strips that don't emit purple or violet light


Ultraviolet (UV) LED strips I have purchased in the past emit a lot of purple / violet light. Does your product emit any purple or violet light?

We would recommend our realUV LED strip lights with the 365 nm wavelength option to minimize the amount of visible purple or violet light. Many LED strips on the market will market themselves as a UV light strip but will have an actual peak wavelength at 400 nm or higher. The result is a significant amount of violet and purple light emission.

We also offer a 395 nm version, and you can read more about how wavelength affects the amount of visible light emitted: https://www.waveformlighting.com/tech/what-is-the-difference-between-365-nm-and-395-nm-uv-led-lights

Our 365 nm LED strips emit most of their energy in UV region, which is not visible to the naked eye. A trace amount dull, bluish-white light can be observed from our 365 nm sources.

Materials that allow UV to pass through


I am building a custom UV LED lamp housing, and I need to allow both the 395 and 365nm UV wavelengths to pass through without any absorption. It appears that most of the polycarbonate materials on the market will absorb these wavelengths and will not work for me. Do you have any recommendations?

UV transmission is indeed a bit challenging, as many materials are engineered primarily for transmittance of visible wavelengths only. As you mention, polycarbonate will almost always be a poor option if UV transmittance is desired as UV absorption is a fundamental property of many plastic materials.

Many commercial glass materials will also absorb a significant amount of UV-A wavelengths, but we are aware of some "quartz glass" materials which are commonly known to have a high rate of UV transmission. We unfortunately do not have any test data or additional solutions at this time, but this may be a viable avenue for exploration.






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