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Quarter / Light

Coin-operated lamp

Drop in a quarter to turn up the light.

  • Lighting
  • Electronics
  • Product design
A hand inserts a coin into the glowing Quarter / Light lamp

One coin at a time

Insert a quarter to switch on the lamp. Each coin adds brightness and sets off an animation of falling light.

In detail

Quarter / Light glowing through its angled acrylic enclosure
Side view

Materials & credits

Materials & tools
PLA, COB light strip, microcontroller, acrylic, coin acceptor