LED COB Chip 10W 20W 30W 50W AC 110V 220V Smart IC Without Driver Led Lamp Beads For Floodlight Spotlight Diy Matrix Lighting Feature:Do now not want power supply,AC 220V/110V input withSmart IC Product Description: Power:10W 20W 30W 50W Voltage:AC 110V 220V Led Chip Model:COB Smart IC Chip Color Rendering Index:Ra85+ Color Temperature:Cold White 6000-6500K,Warm White 2800-3200K Housing material:Aluminum