: our ceiling fan switch is compatible with most ceiling fan, easy to install and use SUITABLE FOR: Our ceiling fan switch 3 speed 4 wire rotary control switch is designed for 4-wire installations APPLICATIONS: ceiling fan switch has a wide uses for ceiling fans, wall lamps, cabinet light, appliances, replacement speed control FEATURES: This ceiling fan swith is designed with 4 wires rotary control and 3 speed models to meet your various needs SPEED CONTROL: ceiling fan switch supports three speed control modes includes off, low, medium, high (off,l-1, l-2-3, l-3)