1、Constant current full isolation scheme: No leakage, safe and reliable. long lifespan up to 3 years above. You don't have to change your lamp all the time. Non-flickering light, soft and harmless for your children's doing homework. 2、Traditional switch smart control of light dimmer: Perfect for meeting guests, dinner, reading, leisure and all kinds of occassions. 3、App remote control: you don't have to nervous about whether you has turned off the light switch as your life is very busy. 4、Support Alexa, Google home, Tmall voice control. Just need to gently say" Tmall, open all the light" It will automatically turn on the light. And say" Tmall, close all the light" It will automatically turn off the light. Bring much convenience to yo 5、Suitable for ceiling lamp, ceiling light, downlight, wall lamp, spotlight etc. Features: 1. Constant current full isolation scheme: No leakage, safe and reliable. long lifespan up to 3 years above. You don't have to change your lamp all the time. Non-flickering light, soft and harmless for your children's doing homework. 2. Traditional switch smart control of light dimmer: Perfect for meeting guests, dinner, reading, leisure and all kinds of occassions. 3. App remote control: you don't have to nervous about whether you has turned off the light switch as your life is very busy. 4. Support Alexa, Google home, Tmall voice control. Just need to gently say" Tmall, open all the light" It will automatically turn on the light. And say"  Tmall, close all the light" It will automatically turn off the light. Bring much convenience to your life. 5. Suitable for ceiling lamp, ceiling light, downlight, wall lamp, spotlight etc. Specification: Condition:100% Brand New Color: As Pictures Shown Voltage range: 180-240v AC Maximum current: 16A Maximum power: 3500W Wireless frequency: 2.4ghz Working temperature: 0-40℃ (32 ° F to 104 ° F) Working humidity: 5%-90% RH, no condensation. WFi | standard IEEE802.11 b/g/n WFi working mode |STA/AP/STA+AP/Smart Contg Wireless security support |None.WEP. Wpa-psk: wpa2-psk (TKIP/AES) Weight: Approx.124g Package list: 1  * Smart Switch