Chanzon High Power Led Chip 10W Purple Ultraviolet (UV 385nm/900mA/DC 9V-11V/10 Watt) SMD COB Light Emitter Components Diode 10 W Ultra Violet Bulb Lamp Beads DIY Lighting 10Watt / Ultra Violet / 385 nm / 45mil chips / 120-140 degree Emitting Angle Input(DC): 900mA / 9V-11V (Best Match with "Chanzon 900mA Constant Current LED Driver") Integrated Chanzon High Quality,High Brightness Chip on Board / Double Golden Wire / Copper Frame) 50000 Hours Life Span (Working Temperature should be less than 60? (140?) with a Heat Sink System) Total Shipping Weight: 0.46oz / 0.013kg (Pack of 1)