Lighting Science  is continuing its campaign to bring affordable LED lighting to the consumer market with their first high-output 60 Watt equivalent LED bulb, which is ultra-efficient and supplied at half of their competitions price.

Lighting Science unveiled its DEFINITY line 9 watt LED A19 bulb at LightFair 2010. This LED bulb is a direct replacement for the commonly used 60 watt incandescent bulb.

This breakthrough 770 lumen DEFINITY LED bulb surpasses the U.S. Department of Energy's benchmark testing of a 60 watt equivalency (739 lumens), is 80% more efficient than a 60 watt incandescent bulb, and will last close to 23 years.

"One might ask how can we continue to produce such innovative technology breakthroughs like the 9 watt DEFINITY LED bulb at such a low price? By revolutionising the science of light, we are able to get more lumens out of our LED chips," said Zach Gibler, Chief Executive Officer of Lighting Science Group.