How To Make Diy Uv Light. Here are the four simple steps you need to make a Near UV filter. Start with a smart phone that has an LED light for the camera flash.
Make sure to vote for me. Your ink will show up under a UV light or black light. They should be positioned so the zip tie goes across some of the grooves for your fingers in the handle of the lamp.
Dip the pen into the ink and write with it.
If you dont the UV light will still fluoresce. Put the parts back into the highlighter and you have your invisible pen. You want two things from this light. Diy uv screen exposure bulb diy screen printing screen.
