http://www.gizmag.com Cambridge University researchers have developed cheap, light-emitting diode (LED) bulbs that produce brilliant light but use very little electricity. They will cost just GBP2 (USD2.80) and last up to 60 years. The gallium nitride based bulbs are 12 times more efficient than conventional tungsten incandescent bulbs and three times more efficient than compact fluorescent low-energy bulbs. As well as lasting 100,000 hours, ten times as long as today's eco-bulbs, the LED bulbs do not contain mercury, so disposal is less damaging to the environment, they do not flicker and fully illuminate instantly, unlike the current generation of eco-bulbs.en gizmag.com http://www.gizmag.com/3-led-light-bulb-lasts-60-years-and-could-end-battle-of-the-bulbs/10879/#comment-88228 http://www.gizmag.com/3-led-light-bulb-lasts-60-years-and-could-end-battle-of-the-bulbs/10879/#comment-88228 Fri, 28 Oct 2011 12:23:53 -0500 http://www.gizmag.com/3-led-light-bulb-lasts-60-years-and-could-end-battle-of-the-bulbs/10879/#comment-19330 http://www.gizmag.com/3-led-light-bulb-lasts-60-years-and-could-end-battle-of-the-bulbs/10879/#comment-19330 Wed, 07 Apr 2010 09:05:40 -0500 http://www.gizmag.com/3-led-light-bulb-lasts-60-years-and-could-end-battle-of-the-bulbs/10879/#comment-1141 http://www.gizmag.com/3-led-light-bulb-lasts-60-years-and-could-end-battle-of-the-bulbs/10879/#comment-1141 Tue, 24 Feb 2009 05:55:43 -0600 http://www.gizmag.com/3-led-light-bulb-lasts-60-years-and-could-end-battle-of-the-bulbs/10879/#comment-835 http://www.gizmag.com/3-led-light-bulb-lasts-60-years-and-could-end-battle-of-the-bulbs/10879/#comment-835 Thu, 05 Feb 2009 00:34:02 -0600 http://www.gizmag.com/3-led-light-bulb-lasts-60-years-and-could-end-battle-of-the-bulbs/10879/#comment-817 http://www.gizmag.com/3-led-light-bulb-lasts-60-years-and-could-end-battle-of-the-bulbs/10879/#comment-817 Wed, 04 Feb 2009 15:42:31 -0600 http://www.gizmag.com/3-led-light-bulb-lasts-60-years-and-could-end-battle-of-the-bulbs/10879/#comment-748 http://www.gizmag.com/3-led-light-bulb-lasts-60-years-and-could-end-battle-of-the-bulbs/10879/#comment-748 Mon, 02 Feb 2009 14:15:32 -0600 http://www.gizmag.com/3-led-light-bulb-lasts-60-years-and-could-end-battle-of-the-bulbs/10879/#comment-745 http://www.gizmag.com/3-led-light-bulb-lasts-60-years-and-could-end-battle-of-the-bulbs/10879/#comment-745 Mon, 02 Feb 2009 13:44:58 -0600