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SEE THE NEW CALIFORNIA LIGHT WORKS 440 MODEL FOR 2014 HERE! 90% Cooling Fan Life Span: 50,000 Hours MTBF Operating Temperature: Between 5 and 104 Degrees Fahrenheit Operating Position: Light facing down at plant canopy Warranty Information: In June 2012, California Lightworks increased their warranty from 2 to 3 years on all of their indoor LED plant grow lights. That says a lot about the quality and performance of their growing lights, and the company itself who is willing to back their products for that length of time to better serve customers like you. **Many countries outside of the US use 240v, this item cannot be plugged directly into a 240v plug, it must be used with a transformer first!**