... life time more than 50,000hours. 3.Environment friendly:Mercury free,No UV and low heat generating. 4.Convenience:Direct ... day) 6. unique optical design, no light pollution, glare-free, uniform light field, no strobe 7.lighting efficiency 80% 8 ... low-voltage constant current driver, security, stability, reliability 13.Green, lead-free, no UV radiation, no breakable glass 14. significant energy savings ...