Specification Input voltage: 100-250 VAC, 50 / 60HzWiring: Neutral Wire, L1, L2, Earth WireMax Load: below 300 W / gangApp Name: Smart Life or Tuya AppWireless Protocol: Tuya ZigBee 3.0Switch Channels: Double Control Curtain SwitchStandby Consumption: below 0.5WEU Switch Size: 86mm*86mm*35mmUS Switch Size: 120mm*72mm*35mmButton Type: Push Button / Touch Panel ControlPlastic Material: Fireproof ABSProduced by ISO9001 Factory: YesPatent Design: Yes New Percentage Function - And you can open the curtain to 50% as you need.- You can check the shutter status even you are not at home. Voice Control - Compatible with Alexa, Google Assistant.- With voice control to turn on and turn off the curtains. App Control - App Name: Tuya, Smart Life- You can control your smart curtains by mobile phone anytime, anywhere as long as it's with network. Tuya ZigBee Mesh - You can add up to 256pcs Sub ZigBee devices in Tuya ZigBee Mesh Network.- Please make sure you already have a Tuya ZigBee Hub, it's a must for all the Tuya/Smart Life ZigBee devices. Timing Function - You can set when the timer is turned on and when it is turned off, and it will work automatically Wall Switch Control - This double switch with 6 keys on the panel, you can control it on the switch panel directly.