... , can change angle 2) isolated driver, one end power 3) 20W,2000lm, CE/RoHS/TUV/UL led ceiling light , ... 100 to 240V CRI≥70Luminous Efficiency100Lm/wOperating Temp. -20°---40°Power factor≥0.95Power Efficiency0.85Operating frequency 50 or 60HzInput current58mAColor ... measurement135*48*26cm Features1, Latest lockable rotating end cap (Patent)2, No mercury3, Isolated power supply ( very safe )4, PC Lens: ...