Cool Idea

Saw this on Core77. Really like the idea. Feel like you could do a lot with it. Not necessarily just graf. Could also layer multiple images to get more complex pieces. or really play with exposure time. also cool cause you dont need this product to do it. anyone with a camera and led can. be a lot of fun to experiment with. the device is cool though because of the charging function. it is commonly used in flashlights. there is actually a team here using that mechanism for a chlorine production device. Simple, reliable, relatively effective.

LED Graffiti