... 20w 300x300,100-240v,CRI>80 constant current power supply CW,NW,WW,IP40,CE,RoHS PF>90%, ... and convenient installation6. Long life 50000hours7. Isolation constant current power supply, No Flicker8. Warranty 3 yearsSpec: Item TypeCeiling LightsLED ... 50W 45WLamp Luminous Flux(lm)1500~1600LM, 1950~2100LM, 3000~3200LM3800~4200LM, 2800~3200LMAvailable Sizes298x298x10mm, 298x598x10mm, 598x598x10mm618x618x10mm, ...