Lighting source Samsung SMD5630 LED LED QTY 96pcs Power consumption 36W Input voltage (Driver) 85-265VAC 50-60HZ Efficiency 85% PF 0.9 LED Lifespan 50, 000H Color Temp 4000-4500K Luminous 3900lm Luminescence efficiency 108 lmw Beam-angle 120 Ra Ra 82 Temperature rising < 20 Operation temperature -40+50 Relative humidity 10%-80%RH Fixture Material Oxidized Aluminum + High Quality PMA (Acrylic)+PC diffuse Dimension 24 x 24 x .4 Net Weight (includes driver) 8lbs