Until recently, your only alternative was a compact fluorescent bulb, which has several drawbacks compared with light-emitting diodes. Most people see the light quality as less pleasing, and the bulbs contain a small amount of mercury that's released if the glass breaks. LEDs, by contrast, don't contain any volatile, hazardous substances and are durable. They also last longer.
Osram Sylvania, a division of Germany's Siemens AG, said Monday that it's shipping the first batches of its Ultra LED bulb to some Lowe's stores. The bulb uses 20 watts of electricity and costs $50. It's slightly larger than a regular 100-watt bulb, so it may not fit in all fixtures. Osram claims 25,000 hours of use, or more than 20 times the lifespan of a standard, incandescent bulb.
