How to make black led lights (DIY guide)

How to make black led lights: Top Best DIY guide
  • Save
LED Lighting

A blacklight is a very helpful tool. A black-light can save your life by finding fluids that are otherwise invisible to our sight, especially if you have a pet. Ultraviolet light is produced by a black lamp. We cannot see this frequency with our eyes. But different molecules from a variety of fluids absorb this light.

Visible-spectrum lights are produced by this process. We can identify the type of fluid stain that was there based on the hue and brightness of the light. This is very helpful in identifying pet pee stains as well as blood, semen, and other stains.

Thus, the topic of how to create black using LED lights emerges. The procedure could appear to be challenging. After all, LED strip lights are utilized to emit various colors using the three fundamental colors in conjunction. How can UV light be produced using the visible spectrum?

This post will provide you with an explanation of how to make black LED lights to use in your studies, along with step-by-step instructions.

Overview of black lights

Black lights emit ultraviolet light by covering a bulb with a filter or coating that blocks out the majority of visible light. Under a black light, it is possible to see the fluorescent glow produced by phosphors that respond to light.

If you need a black light but don’t have access to one, you may simply replicate one using a flashlight, smartphone, or tablet with a built-in flash.

Black lights mostly consist of UV light, which is more to the violet side of the spectrum and beyond the visible light range. This explains why you cannot see it despite sensing its energy as heat. UVA light, in particular, is emitted by black lights and is less dangerous.

How to make black led lights (DIY guide)
  • Save

What can you do with the black light?

A black light is a practical tool that can be used to find specific liquids or things. Even while wiped-off fluid stains aren’t visible to the naked eye, they frequently leave some traces. As a result, the residue can be found using a black light.

Aquarium tanks may use black lighting. Employees of pet stores must assess the amount of ammonia in the water and look for fish diseases.

In forensics, a black light is also used to find bodily fluids like blood and menstrual fluid on items of clothing that have been gathered as evidence at a crime scene.

How to make black led lights (DIY guide)
  • Save

Fluorescent tubes are also frequently employed for a variety of tasks, such as testing air filters’ efficiency, sterilizers, and finding ultraviolet leaks in oil pipelines.

In addition to these, black lights are also employed in a few additional locations or pursuits. Banknotes can be checked in financial institutions using a black light. Using glow-in-the-dark aesthetics, a black light can also be utilized to embellish props or other items.

Overall, there are many applications for black lights, therefore learning how to create black with led lights is not a terrible idea.

How to make black led lights (DIY guide)
  • Save

Is black light energy efficient?

No of the season, a blacklight is a terrific way to achieve the desired glow, but if you’re searching for an energy-efficient power source that is equally affordable as a conventional bulb and far more successful at UV-painting the walls, consider utilizing some led strip light. If you are planning to make a party at home, use the black light bulbs to make everyone dance and enjoy the atmosphere.

How to make black led lights (DIY guide)
  • Save

Requisites for creating a black light with LED strip lights

To build an LED strip blacklight, you will need a few materials. The supplies you will require are listed below:

  • Paint kit with blacklights (blue or purple)
  • Adhesive LED tape strip lights
  • Power supply, two-part epoxy adhesive, and remote control
How to make black led lights (DIY guide)
  • Save

How do you blackout LED strip lights? 3 LED lights techniques for making black light

You may learn how to create darkness with led lights in a few different methods. Two different approaches will be looked at in this essay. If you have access to the remote control that is typically provided with the led strip, it will determine which way you use the most. If you do not possess that remote, the alternative technique is covered.

How to make black led lights (DIY guide)
  • Save

First approach: remote control

The majority of LED strip lights include a remote control. This is also utilized to adjust the blinking rate and color of the lights. It functions as a customization controller in essence, and that is precisely what we will do in the first method.

Things to have:

  • dependable strip lights
  • remote control to change the color settings and possibilities
  • if necessary, a power cord extender

You must first outfit your led strip lights completely. Install the power cord after placing them where you want them to be. Choose the layout in advance, then purchase the necessary length of LED lights to complete your connection.

After assembling your layout, turn on the circuit to test it. Ensure that it is powered appropriately.

Next is the method’s central step. You must enter the DIY mode using the remote. After you enter this mode, press 25 times on the red button, and 25 times the blue button.

You need to press the remote controller if the LED strips are already placed. As you press the blue button on your remote controller, your LED light strips will start to change color until you have the desired blacklight effect. While not nearly as good as a commercial blacklight, this is the closest thing LED light strips can offer.

How to make black led lights (DIY guide)
  • Save

Second approach: using transparent tape

If you don’t have a remote or a break along the way, there is a manual method you may use to control each LED light strip to get equivalent effects. You’ll need this tactic, which entails manually squelching visible LED lighting, to preserve UV light.

If you lack the time, you shouldn’t use this tactic. Most frequently, it is employed to turn smartphone LED lights into blacklights. Therefore, we only recommend utilizing this method if you’re just using a few LED strips to make a blacklight. Transparent tape, a blue pen, and an LED light strip are the materials required for this technique.


Count the number of LEDs that can be separated from the LED strips.

To match the number of LEDs, divide small pieces of transparent tape into three groups.

Each LED light bulb should be covered with the first piece of tape before being painted blue with the blue marker.

With the second piece, cover the light bulb completely and color it blue as well.

Place the third piece, colour purple.

Ensure that the visible light is totally hidden.

By turning on your white LED strip lights, you can test it out. Connect it to the power supply and see.

You can use coloured cellophane in place of tape. But you’ll need transparent tape to hold the components in place. As long as there are three color levels, you don’t have to put the layers in this specific order.

How to make black led lights (DIY guide)
  • Save

Final approach: requires more work to do

If you do not have remote controls, but still would like to know how to make black with led lights, here is a description of the process:

Phase 1: Counting

The total number of LED strip lights in each strip must first be counted. This is due to the fact that you will have to manually fix the lights that are attached to each strip.

The goal is to hide all other visible light sources and leave only the UV lights exposed. It is crucial to determine how much material each strip will require. Again, you will need transparent tape.

Phase 2: Cutting

You now need to cut the tape. In sets of three, equal to the number of lights on each strip, it is preferable to cut them into little pieces. Thus, each tape strip will roughly cover three bulbs. Essentially, use three layers.

Phase 3: Positioning

The first part of the tape is now applied to the led strips. Put the markers on the led strips and use a blue marker to cover the clear tape. Paint it blue and cover it completely with the following piece of tape. Finally, use a purple marker to color the third piece and adhere it on top.

Phase 4: Protection

Every LED strip light should be covered while repeating the process. Make that you have enough tape to cover the layout you want. Once the LED lights are installed and the led strips are producing a black light, the setup is complete. Connect it to your power supply and turn it on.

How to make black led lights (DIY guide)
  • Save

Final words

Blacklight is a type of UV light. The primary distinction between the two is that although UV does not emit visible light, black light does. Feel free to try the three methods as you already know how to create a dark light using LED light strips.

The next time you need a black light, use this simple and fast option. To prevent voltage dips and other electrical issues, be sure to link or connect the strips to the power source carefully.

Read also: How to wire off-road lights without relay? How do you wire fog lights to a toggle switch?


Do they make black light LED strips?

If there is no opportunity to buy black light LED strips, you can always do it yourself by following the instructions above in this article. There are three main methods of doing it. The main one that requires less work to do is using the TV remoter. The other methods involve using transparent tapes and whiteboard markers.

How do you get rid of any visible light?

To completely block all light from the LED you should cut some tape and attach it to the wax paper. A few pieces of what are now essentially blackout dot stickers can be ejected using a hole punch. Then a sticker should be placed over a status indicator once the wax backing that has been removed.

How are white LED lights created?

White light is not directly produced by LEDs. White light can be generated from LEDs in one of two ways, as seen below: converting blue light to white light via fluorescence using a blue LED with a phosphor coating. using red, blue, and green LEDs in combination to create white light.

Do LED strips burn out?

DIY LED light strips seldom ever experience burnout when they are properly connected. A circuit overload may occur if too many strips are linked in series. There will be too much overall resistance on the same strip. This could cause a lot of heat to be produced.

How durable are LED light strips?

Compared to both incandescent and fluorescent lights, the predicted lifetime of LEDs is incredibly long. LED strip lights have an average life expectancy of around 50,000 hours, so they will still be shining bright in 17 years, long after their conventional equivalents have run out of life.

Avatar photo

I have been interested in physics, electricity, and electronics since childhood. Now I live in my own house with my wife and two children. I like to repair household appliances on my own. I myself developed a project for power supply and lighting at home, and I know many secrets and interesting nuances, which I want to share on the blog.

Rate author
Add a comment

Share via
Copy link