Cree LED Generates 1,000+ Lumens

With a driving current of 4A, the company's prototype, single-die LED delivers a light output of 1,050 lumens in cool white, a level comparable to a standard incandescent bulb, and 760 lumens in a warm-white version. As a result, the company claims this breakthrough may lead to the development of LEDs that will make traditional light bulbs obsolete. Efficacy of the cool-white LED is 72 lumens/Watt and, for the warm-white device, 52 lumens/Watt. Both versions allegedly operate at significantly higher efficacy levels than conventional light bulbs.