LEDENET Wireless Remote LED Dimmer RF PWM Dimming Controller Control DC 12-24V 20A for 5050 3528 Single Color LED Strip Lighting Input Voltage: DC12-24V. Max Current: 20A. Max Power: 240W (12V), 480W (24V) Max remote distance:15-20 meters. Remote need ALKALINE BATTERY 27A (battery not included) PWM Dimming LED single color dimmer is a controller that can adjust brightness infinitely Its control mode is wireless control, you could adjust light to the appropriate lighting brightness in accordance with your actual need. It is constant voltage dimmer, not constant current dimmer. It is suitable for DC 12V or 24V LED light (max 20A), not suitable for high power LED (because it is constant current). Please note it. Thanks.