22 Apr '11, 4pm

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However, the FIRST ”E-Watt Saver” can last 9.1 years based on 3 hours/day of use which is conservative estimate. Most LED lights can last well over 20 years. For approximate 3 hours of daily use, the cost can be low as 84 cents per year. Made with TESS with CREE LED, the typical models of LED lights, the FIRST light bulb are non-directional unlike the GE LED light bulbs. However, the FIRST LED light does have its advantages despite being mono directional.

Full article: http://greenbuildingelements.com/2011/03/14/first-green-l...

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