1、Good material: made with high quality PC and flame-retardant ABS, it features rugged construction, long lifetime, well protects the inside electronic parts. 2、Voice control: dimmer switch is compatible with Amazon Alexa, Assistant, which allows you to say the commands, to turn on/off the lamp, adjust brightness. 3、Remote control: you can set a countdown or a timing to control the light via smart phone anytime, no matter where you are, very convenient. 4、Group control: you can also share to your family via app, let they control it at the same time, enjoying the charm of technology and smarter easier life. 5、Wide application: intelligent dimmer switch module, easy to install, widely used in houses, office buildings, schools, hospitals and other more places. Smart dimmer switch module, let you control on your mobile phone anywhere, to turn on or off your home's lamp. Make your home smarter! Features: Good material:made with high quality PC and flame-retardant ABS, it features rugged construction, long lifetime, well protects the inside electronic parts. Voice control:dimmer switch is compatible with Amazon Alexa, Assistant, which allows you to say the commands, to turn on/off the lamp, adjust brightness. Remote control:you can set a countdown or a timing to control the light via smart phone anytime, no matter where you are, very convenient. Group control:you can also share to your family via app, let they control it at the same time, enjoying the charm of technology and smarter easier life. Wide application:intelligent dimmer switch module, easy to install, widely used in houses, office buildings, schools, hospitals and other more places. Specifications: Material: ABS Color: Color Voltage: AC 100-240V 50/60Hz Max Power: LED AC 230V 150W / AC 120V 80W Working Frequency: 2.412GHz-2.484GHz Operating Temperature: -10℃~40℃ Operation Range: ＜100m IP Level: IP 20 Item Size: 43*39.2*22.3mm / 1.69*1.54*0.87in Package Size: 5.62*4.63*3.24cm / 2.21*1.82*1.27in Package Weight: 50g / 1.76oz Note: The product needs to work with gateway. Smart dimmer switch module only, other accessories in the pictures are not included. Due to manual measurement, there may be deviation, please in kind prevail. Due to lighting or other reasons, the picture and material object may slightly differ. Packing List: 1 * Smart Dimmer Switch Module 1 * Smart Dimmer Switch Module