Feature: 1. Easy to Operate: This LED dimmer switch is knob operated control. Just rotate the knob to adjust the brightness or simply turn on/off the lights. 2. WIFI Function: Support WIFI function, realize remote dimming control, no need to go to the switch to adjust, which is very convenient. 3. Enjoy Time: When dining, watching a movie or reading a book with your family, you can create a scene with the desired brightness. 4. LED Indicator: LED indicator with brightness level, the bottom LED flashes slowly, supports quick configuration mode, AP configuration mode. 5. High Quality Materials: Using high quality PC materials, fire retardant, wear resistant, safe to use, and durable. Specification: Item Type: Smart Dimmer Switch Material: PC Color: White Product Size: Approx. 86x86mm / 3.39x3.39in Weight: Approx. 183g / 6.5oz Input Power: 100~240V AC 50-60Hz Dimming Control: SCR Inductive Load (LED/CFL): 220W Maximum Resistance Load (Incandescent Lamp): 300W Maximum Communication: Wifi 802.11 b/g/n 2.4GHz Button Life: 500000 times Working Temperature: -10℃~45℃ Working Humidity: <90% . Package List: 1 x English Manual1 x Smart Dimmer Switch1 x Bag of Screw(2pcs) Note: 1. Please allow 1‑2in error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.