Specifications: Type: DC 12V-24 30A Dimmer Input: DC12-24V Output: 1 Channel 360W 12-24V (0-30A) Static power consumption: 1W There is a black knob, just twirl it to adjust the brightness of LED lights Color: Black Working Temperature: -20~60ºC Features: 0~100% brightness adjustable Easy to install and simple to use Adjust the light soft and stable, no flickering. PWM digital dimming, avoid rush current, protect your LED lights Mainly use to adjust single color LED light lamps and Led Strip. Constant voltage and constant current output can be connected with amplifiers to extend its load. Package Inlcuded: 1 X 12-24V 30A Dimmer The merchant warrants that their products comply with all applicable laws, and are offered only if they comply with Joom's policies and EU Product Safety and Compliance laws.