Light function: button to turn the light on and off. Light switch set, adjustable wind speed and distribution, one touch. Compatible with most ceiling fans and lamps. Adjust light, wind speed, and timing at the touch of a button. Includes remote control bracket. Precise, backup function, ignores obstacles. Voltage and current: 110 V and 220 V (universal). Remote control range: 10 m indoors through the wall, 30 m outdoors.