This is such a great idea for cutting down on electricity usage for patio lighting! A couple of recent grads from the Design Academy Eindhoven unveiled their glass lamp design that glows brightly well after the light bulb has been switched off. Thirty minutes with an LED or traditional incandescent light bulb yields up to eight full hours of this ambient lighting. The luminescent after glow is so unique. Check out what they look like when they're glowing after the jump!
For more info on these contraptions, check out the Trap Light website.
(images: Co. Design via Mike Thompson)