2.4GHz frequency RF remote control can controlled light through obstacles. Adopt the press key and touch wheel control remote; User can choose different changing mode, adjust the speed and brightness, and turn on/off by the remote control according to their preference. The controller is with indicating light and power off memory function, so the next time you used it, it will start with the same mode. Cautions: 1. this products input voltage is DC12-24V, other input voltage are not allowed. 2. Lead wire should be connected correctly, according to the wire color and the connecting diagram offers. 3. Overload is prohibited.