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2009-12-01 Science & Technology

Cree achieves 186 lumens/watt in lastest LED

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Posted by lord garth 2009-12-01 09:45|| || Front Page|| [3 views ] Top

#1 It is almost a given that unless light is close to natural light, with the exception of some of the invisible bands, it won't be as good for you. Importantly, light has to penetrate the skin to some depth to stimulate Vitamin D production, and not all bands will readily do that.

Posted by Anonymoose 2009-12-01 13:02|| 2009-12-01 13:02|| Front Page Top

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