... 2, Samsung or Seoul leds 3,PF:>90% 4,ETL,CE,RoHS approved Specification Features 1,Efficient heat dissipation structure 2,Wide ... ~6500K color temperature 4,Operating Temperature from -10°C to +40° C Benefits 1,50%~ 70% energy saving than traditional fluroscent ... lamps 2, Contains no Mercury and ROHS complaint 3, 40,000 hours lifetime 4, Easy to install, using same interface ...