... LED light panel 40W 1. Luminous efficiency up to 80LM/W, CRI >802. New aluminum frame,ultra-thin 10mm,no ... Voltage(V)100~240VWorking Voltage (V)30~40VLamp Power(W)20W 26W 40W 50W 45WLamp Luminous Flux(lm)1500~1600LM ... , 2800~3200LMAvailable Sizes298x298x10mm, 298x598x10mm, 598x598x10mm618x618x10mm, 298x1198x10mmLamp Luminous Efficiency(lm/w)75 ~ 80lm/wCRI (Ra>)80Color Temperature(CCT)CW 5800~6300K ...