Dimmable Bulb Only: This smart dimmer switch only supprt dimmable LED/CFL 150W Max, and INCANDESCENT 300W Max. Please confirm your bulb's specification before placing order. It also works with ≤250W fan. Moving your finger to control fan speed. App Remote Control: Remote control lightings of your house via Smart Life app from anywhere at anytime. No hub required. Voice Control: The wifi dimmer switch works with Alexa and Google Home Assistant to conveniently control the light with simple voice command when you are on go. Timing Function: Create schedules to automatically turn the light on with the preset brightness or off at specific times. Perfect to create different mood lights with specified brightness for your daily activities, bedtime or TV time, sunrise or sunset, etc. Memory Function: Adjust the light to a certain percentage by moving your finger up or down on the front and center of the switch, by Smart Life App or voice command; get the right light intensity while watching movies, reading, wearing makeup, etc. The switch remembers and turns back on to the last light setting when powered off. Specification Rated Current:7A Input Voltage: AC 100-240V Input Frequency: 50Hz/60Hz Max Load Power: LED/CFL:250W INCANDESCENT:300W Fan: 250W WIFI Standard: 802.11 b/g/n 2.4GHz Receive Sensitivity: -98dBm Transmit Power: 19dBm Standby Consumption: ≤1W Indicator Light: LED Material: Plastic colour: As shown Package Contents: 3 x Tuya Smart Wifi Dimmer Switch