gallium nitride bulb Archives – The Green Optimistic green tech news, since 2008 Fri, 30 Jan 2009 06:34:49 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 2667534 World's Cheapest "Eco" Bulb That Lasts For 60 Years https://www.greenoptimistic.com/gallium-nitride-light-bulb-20090130/ https://www.greenoptimistic.com/gallium-nitride-light-bulb-20090130/#comments Fri, 30 Jan 2009 06:34:49 +0000 https://www.greenoptimistic.com/?p=1979 The researchers at Cambridge University have invented a new type of "eco" bulb that lasts for 60 years and is three times more efficient than current energy light bulbs. It can reduce the lighting bills by up to 75%.

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