Specification:Voltage: DC5VWattage: 4.5WCurrent: 900maLED chip: SMD5730LED quantity: 21PCSLight color: warm white, whiteDimmable: yesAngle: 120 degree flood beamColor temperature: warm white: 2700-3200K; white 5500-6000KSize: 15*8*210mmMaterial: aluminum + plasticFunction: touch switch + stepless dimmingFeature:1, Touch switchTouch the area belonging to the black area in the back of a small lamp, after the release energized as long as the touch of a hand, LED light from dark to bright onwards, when the need to turn off lights when tapping the back of the touch zone lights will automatically from light to dark off.2, Stepless dimmingThis section can adjust the brightness of LED lights according to your needs, methods of operation are as follows:When the lamp is lit when long press on the back of the touch area does not let go, the light will begin to gradually darken to your satisfaction brightness when you can let go, when a long press on the back of the touch area again let go, the lights began to brighten, brightness to your satisfaction you can let go.3, ApplicationCan be used for multi-axis, across the machine, helicopters, cars and other DIY light.Package included:1*21CM 21LED USB touch dimming light