Luxim Plasma Light Bulb Kicks Some Serious LED Butt : TreeHugger

Luxim has created a light bulb the size of a pill that can outshine and outlast conventional bulbs and with a fraction of the power usage. However, this bulb doesn’t work like any light source you’ve ever seen. the bulb itself has no wires and no filament. An RF amplifier surrounding the bulb generates an electric field so intense it turns gas and salts in the bulb into a high energy plasma that gives off light. A lot of light. Imagine something the size of a miniature Christmas tree bulb producing enough light to drive a video projector.