In just a few years, incandescent light bulbs have become a thing of the past — replaced by more energy efficient and affordable compact fluorescent bulbs. But now General Electric says it has a technology that could kill the standard light bulb altogether: A new light-emitting diode bulb that performs just like a 40-watt incandescent, but lasts more than 17 years.
Marketed as the Energy Smart LED Bulb, the product should hit shelves by the end of 2010, GE says. Not only does it last 25 times longer than the bulbs consumers are used to, it also substantially cuts energy use (requiring only 9 watts to emit the same 450 lumens) — presumably saving homeowners cash off their energy bills for more than a decade.
The one catch? Its price tag exceeds $40. Who will be willing to pay that much when people are used to buying a four-pack of bulbs at the grocery store for under $10? GE says it has faith that consumers will weigh potential savings against upfront cost, but this has never been a strength of the mass market.
The GE bulb is revolutionary for several other reasons. One of the reasons LEDs haven’t been widely adopted for general home and workplace lighting is because their beams tend to be focused, rather than diffuse. One of the companies working on this problem is Bridgelux, which just came out with its own screw-in LED bulb, called the Heleion. The Energy Smart LED bulb uses plastic structures wrapped around the glass to more evenly distribute the light.