COB LED has good thermal performance, long , and lower power loss. Heat dissipation is good and easily manageable. Only about 30% heat of High Power LED. Among different LED components such as high power LED, SMD, dip etc, COB LED is best in less thermal resistance and cooling. COB LED is better lighting effect,it is no dizzy, no uncomfortable glare, no strips. When it light up, it looks smooth and like a lighting pane Color :Warm White Power: 3W. Voltage: 9-12V DC. Current: 300mA. Luminous Flux: 280LM. Color Temperature:Warm White：3000-3500K Lighting Angle: 180 degrees. Package Include:1x 3W LED Chip Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.