NEC Corp has developed two types of miniature gadgets that convert fluorescent lamps into power outlets. It’s the first step towards producing data emitters and other power-consuming electronics machines to be fixed to the ceilings in stations and shopping centers without having to conduct costly electrical wiring work.
One of the two gadgets — a ring-shaped component around the lamp — generates electricity by converting faint pulses of electromagnetic energy radiated by fluorescent lamps into electric currents. The other — a thin round plate-shaped component at either one of the two metal ends of a fluorescent lamp — siphons off part of the usual electricity that is supplied to the lamp to make it fluorescent.
Related: Talking lights.