DC 5V 60x15mm 2W LED Chip On Board Bar Light Source Lamp for DIY USB LED lighting PartFeaturesBrand new and nice High Quality Brightness COB LED gentle chips Ultra long-lasting design Low strength consumption, save a number of energy Suit for backlighting and others Ideal for DIY use Great for making mild assets for a video camera, fish tank, ornament gentle Among assorted LED substances equivalent to high-power LED, SMD, dip, etc, COB LED is healthier in thermal resistance and cooling: Aluminum-alloy plate + Silicon Rubber + COB chip Power: 2W Size: 60*15mm Light area: 38*9mm Forward Voltage: DC 5V Max Forward Current: 400ma Emitting color: Warm white (3000K), Cold white (6500K) Luminous Flux :>100lm/w Viewing Angle: 120 degreesPackage Included1X led ChipImportant(Must learn earlier than use)1, Need to weld a cord before connecting to the ability supply. 2, If you utilize a 110V or 220V AC energy supply, you wish a relentless latest driver/ transformer. 3, The LED lights will produce lots heat, please add a heatsink/ radiator to guard the COB chip