Bedbugs by Michiel Knoppert from usa

Bedbugs is an led-bedside light. It's charged and activated by pushing a module down into a crystal tube. You set the time of the light by the amount of travel.
After releasing it, the module starts creeping back to it's original position. While making it's way back, more and more light is being obscured by crystal bugs that swarm around the tube. Their shadows move down upon you as the light makes it's way up, slowly filling the bedroom in eerie darkness.