Inhabitat has a post on a long life, energy efficient LED light - New Super Efficient Pharox 60 LED Bulbs Last for 25 Years.
One of the most exciting new products we found at West Coast Green this past weekend is the latest innovation by Lemnis Lighting, the Pharox 60 LED Dimmable Lightbulb, that uses just 6 Watts and has the equivalent luminescence of the traditional 60 Watt incandescent bulb. The Pharox 60 fits a standard sized household light fixture, is made of recyclable material, and is the most energy efficient bulb of comparable light quality on the market today with a light output of 300 lumens and a warm white light of 3000K. A patented heat sink keeps the bulb temperature low (we think it’s the aluminum housing surround) and it is the most environmentally safe option on the market as well, containing NO lead, mercury, or wolfram, unlike it’s compact fluorescent competitors.
Compared to the incandescent bulb, which lasts an average 1,000 hours, the Pharox 60 is expected to last a 35,000 hour lifespan. According to Lemnis, if every American household switched just one 60W light bulb to a Pharox light, $1.4 Billion in electricity costs and 9 billion kilowatt hours would be saved annually.