This is a very simple lantern that looks both charming and intriguing. No buttons, no cables, no wall warts; just a jar. An ordinary upturned jar just begging to be flipped the correct way up, and when it is, the whole room is lit with its mysterious cool glow, just like magic! These lanterns make excellent night lights and can be carried through dark halls as they have no wires! I have made a few now and they are really cool, flipping just one over is enough to light up the whole room!