how do i build a led lightbox?

Need to know how to build an led lightbox for tracing artwork.

Ya, rickharris has good idea. Only thing I would like to change is instead of Bright LEDc torch, have some white LEDs scattered on the backside ( depending your requirement of brightness & space). This will give you uniform spread of light which is necessary for tracing artwork.
Cheat: find a dead LED backlit LCD monitor - ask in your local computer repair place. They'll be DELIGHTED (pardon the pun) for you to take a scrap LCD off them. Make sure the backlight still works though.

Then dismantle the LCD from the backlight parts.
FoolishSage5 years ago
If you use the search box at the top right you will find several instructables for building a led lightbox. This one seems to match what you need: https://www.instructables.com/id/Inexpensive-DIY-LED-Lightbox-for-Tracing/
rickharris5 years ago
Make suitable size box.
paint inside white
top with perspex (sand to make frosted)

Put a good bright LED torch inside box for illumination