SONOFF RE5V1C 5V DC Wifi Inching Selflock Switch Remote Control Dry Contact Relay Module Support Alexa Google Home IFTTT Features: Low power - 5VDC low voltage input. LAN Control C Turn on/off the device even if WiFi is not able to access the internet. App Support C Free iOS and Android mobile app eWeLink. Remote On/Off C Turn on/off electrical equipment anytime, anywhere. Sync State - Real-time device state provided to the app. Timed - Set a schedule/countdown timer to turn on/off at a specified time. Shared Control C Control your smart home with your family. Scenario - Turn on/off a bunch of devices with one click. Smart Scenarios - Trigger on/off by temperature, hum, or other environmental conditions from sensors. Compatibility C Works perfectly with Amazon Alexa, Google Assistant, IFTTT, Google Nest. Specification Power Supply: 5V DC. Dry contact output. Weight: 9g material: plastic Max Current: 10A. Humidity: 5%-90%RH, Non-condensing. Operating Temperature: 0oC-40oC(32 F-104 F). Nano size: 34.5*25*19mm. Package included:1* SONOFF RE5V1C