Fancy Lightbulb Concept

What you see here looks like a normal cardboard cut-out of a lightbulb, but what’s so amazing about it is it actually lights up the moment the lightbulb cut-out is flipped. No measure of magic is used in this procedure, although I’m sure those at Hogwarts will be to differ. A tiny cell powers the cardboard lightbulb to help provide ambient illumination around you. Would be nice to see this concept roll off manufacturing lines though as it would be handy carrying this around in my wallet.