Chanzon 10 pcs High Power Led Chip 5W White (6000K-6500K/600mA-700mA/DC 6V-7V/5 Watt) Super Bright Intensity SMD COB Light Emitter Components Diode 5 W Bulb Lamp Beads DIY Lighting 5Watt / White / 6000 K-6500 K / 500-600LM / 45mil chips / 120-140 degree Emitting Angle Input(DC): 600mA-700mA / 6V-7V (Best Match with "Chanzon 600mA 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: 0.48oz / 0.014kg (Pack of 10)