... LUMINOUS EFFICACY 4,WITH CE,ROHS,FCC APPROVAL High Power LED Ceiling Light Characteristics1, Machined aluminium alloy housing and ... , Optimized optical lens with efficient light distribution control6, Externally power supply, wide input voltage range, constant-current output.Usage: ... Temperature for 2700K-3200K and 5500K-6000K are available.HIGH POWER LED CEILING LIGHT WITH CE, ROHS, FCC APPROVAL. ...