How To Make Black Led Lights

How To Make Black Led Lights
  • Author: Amanda Arnold
  • Posted On: November 2, 2021
  • Updated On: August 21, 2023

Do you want to see if LEDs can create a blacklight? This tutorial will show you how to create a blacklight using LED light strips. By the end of this guide, you should be able to make your black lights utilizing LED strips using locally available resources.

Before learning how to construct one with an LED light strip, let’s talk about why you’ll need a black light before learning how to construct one. People prefer to use black lights mainly for parties.

Black lights are frequently used to illuminate gloomy parties. Occasionally, neon-colored items, props, decorations, or face paint are desired. You can’t use a regular light for this party type because the items will only glow in the dark. So, the black lights are the main requirement to make any event a little dreamier.

Black Lights: An Overview

Black lights use a filter or coating over a bulb to block out the most visible light to produce ultraviolet light. The fluorescent glow created by phosphors that react to light can be seen under a black light.

If you don’t have access to a black light and require one, a flashlight, a smartphone, or a tablet with a built-in flash can be used to simulate one. Please be aware that some light sources may become too hot and melt the plastic used in our projects.


UV light, beyond the visible range on the spectrum and more to the violet side, is the main component of black light. This is why, although feeling its energy as heat, you can’t see it. Black lights, in particular, emit UVA light that is less hazardous.

Phosphors come in various neon colors, including orange, green, and pink. In blacklight, white also glows naturally. You can test your DIY black light with any phosphor on hand to see whether it works.

Methods To Make Black LED Lights

You may make a dark light with LEDs in a variety of ways. We’ll look at two standard methods you can utilize from the convenience of your own home.

Use A Remote Controller

If you wish to use this option, you’ll need a high-quality strip light with a remote controller included in the package. We bring this up since all strip lights on the market do not include remote controls.

If you wish to utilize your strip lights as black lights, ensure the package includes a remote controller before buying. For this process, the needed supplies are:

  • High-quality LED lights strip
  • A remote
  • A durable power sources



  • The light strip must first be installed.
  • Make sure it’s correctly connected to the power source.
  • To change the color, press the DIY button on the remote.
  • Press the red button a total of 25 times.
  • Now press the blue button a total of 25 times.

If you already have the LED strips installed, push the remote control. Your LED light strips will change color as you push the buttons on your remote control until you achieve the ideal blacklight effect. While this isn’t quite as good as commercial blacklight, it’s as near as LED light strips will get you.

Use A Transparent Tape

There is a manual technique to manipulate each LED light in the strip to give you similar results if you don’t have a remote or break along the route. You’ll need this strategy to keep UV light, which involves manually suppressing visible light.

If you don’t have the time, this strategy isn’t for you. It’s most commonly used to convert smartphone LED flashes to blacklights. As a result, we only advocate this strategy if you’re using a few LED strips to create a black light. The needed supplies for this method are a LED light strip, transparent tape and a blue marker.


  • Count how many separate LEDs there are in the strip.
  • Cut small pieces of transparent tape in groups of three equal to the number of LEDs.
  • Place the first piece of tape on each LED and use the marker to paint them blue.
  • Layer it with the second piece of tape and color it blue.
  • Color the third piece purple and place it on each.
  • Make sure each light is completely covered.
  • Try it out by turning on your white LED light strip.


Instead of using tape, you may use colorful cellophane. You’ll need to use clear tape to keep the parts in place. You don’t have to set the layers in this exact order as long as you have three color layers. You’ll have your DIY blacklight if you follow the same steps as above.

Using the remote technique is still the most convenient option. When it comes to quality, this DIY blacklight pales in comparison to a legitimate commercial blacklight. Nonetheless, it works well in a pinch and aids in creating UV lighting in a room.

Frequently Asked Questions

What is the importance of black LED light technology?

For LED, black light technology is simple. An LED can produce any wavelength of light. Although the sweet spot for producing the best black light effect is a little lower, most black light LED sources are in the 385–400nm region.

What are the uses of black LED light?

They are frequently employed to make things glow in businesses, clubs, and amusement parks. Light’s energy causes this glow as phosphor-like particles transform it into visible light.

Do black LED lights affect the eyes?

The safest UV wavelength of all is in the long-wave UV-A region, which is what most black lights emit. That’s why black led lights don’t affect eyes.

What is the importance of black LED Lights?

Uses for black lights are numerous. In addition to being used to study fluorescent dyes and illuminate artwork, ultraviolet light is also utilized to cure plastics, attract insects, increase the formation of melanin in the skin, and observe fluorescent dyes.

Which substance is present in black LED lights?

Phosphors are what you see glowing under a black light. Any substance that responds to radiation by emitting visible light is called a phosphor. A phosphor transforms a black light’s UV radiation energy into visible light.

Final Thoughts

To begin, black light is a form of UV light. The main difference is that black light emits very little visible light, whereas UV does not. As you already know how to make a black light with LED light strips, feel free to explore both ways indicated above.

It’s a quick and straightforward solution to use the next time you require a black light. Remember to link or connect the strips with care and care to avoid voltage dips and other electrical difficulties.

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Author: Amanda Arnold

Amanda has been working with ConstructionHow since 2021. Her experience spans over 5 years in the creative niche such as home decor and trends, landscaping, renovations, and custom architectural values. As a home designer expert, she has a keen eye for the latest home improvement trends with accurate facts that readers find impossible to ignore. Being invested in home-building trends is how she has gained her lucrative expertise exploring more to bring a positive ambiance for all homeowners (and even tenants!). Currently, she lives in a beautiful beach home, a source of fascination for her.