Specifications:Material: CopperVoltage: DC 3-3.6VCurrent: 600-700mAPower: 3WLuminous: 260-280LMLight Color: Cold White(10000K)Total Size: 14.5 x 7.3 x 5.4mm / 0.57" x 0.29" x 0.21"(L*W*H)Features:Made of material, long service life, low consumption, high brightness.Widely used in the replacement of LED downlight, track lights, floodlights, flashlights, stage lights.This LED chip needs a heatsink for cooling before power on. Apply thermal grease evenly on the bottom of the light source and the contact surface of the heatsink when installation.Package Contents:10Pcs x LED Chip