
If you are interested in building a DIY fill light, this article is worth checking out.
Suppose you happen to have a few adjustable color-temperature driver boards with display screens. They look pretty good, and suddenly you get the idea of turning them into an adjustable color-temperature fill light.
First, you need to design the PCB and have it manufactured. You can choose the dimensions according to your needs. In this project, a square PCB measuring 8.5 cm × 8.5 cm was used, featuring a dual-color-temperature design with two series-connected LED strings.

After the PCB has been fabricated, you can begin creating the 3D model.


Once the modeling is complete, you can 3D-print the enclosure and apply a coat of paint to improve its appearance.

Then, wait for the paint on the enclosure to dry completely.

Next, apply solder to the PCB.

After that, place the LED beads onto the board.

Once the LEDs are positioned, you can start soldering them with a lighter.

After the soldering is finished, perform a test. Everything works quite well, and the project succeeds on the first attempt.


Now you can begin assembly. Two 18650 batteries are used, while the remaining components are secured with hot glue.



Then, tighten all the screws.

For the front panel, cut a piece of transparent acrylic. Since the light is intended for long-distance fill lighting, a diffusion plate is not necessary.

A universal mounting screw is installed at the bottom, making it convenient for fixing the light to different supports.

The project is now complete, and this is the final result.


