Light source color	Warm white/ day white/cool white
Color temperature	3500/5500/6500K
Efficacy ( lm/W )	43.5
Normal operating luminous flux	1652lm
Color Rendering Index, Ra.	≥76
Viewing angle	120°

Housing temperature 　　　　　　　　　　　　　　　　　　　　( Ambient temperature: 28℃)	≤50  ?C
LED temperature　　　　　　　　　　　　　　　　　　　　　　( Ambient temperature: 28℃)	≤ 55 ?C
Operating ambient temperature & humidity	-30~40?C / 10~90 RH
Storage temperature	-30~65?C
Degrees of Ingress Protection	inner use only
Estimated life span ( hrs )	50,000
Dimension ( mm )	600*600*37
Materials  Glass & Aluminum alloy	Frosted PMMA diffuser & aluminum holder
Volume weight with package ( kg )	14
Accessories	4pcs steel wires and screw for hanging the light on the ceiling.