Overview: This wireless switch is a cost-effective device with a WiFi control module, requiring no programming. Simply download the EWeLink app and connect to WiFi to control your appliances via the cloud. Once connected to WiFi, you can control various types of appliances from anywhere in the world using the EWeLink app. By setting up scheduling and sharing control with family members, you can enjoy a convenient and carefree lifestyle. Features: * Supports WiFi network. Allows multiple WiFi smart switches to be managed on one smartphone. * Supports status tracking: device status is updated in real time within the EWeLink app. * Enables remote on/off control of connected appliances such as lights, electric kettles, rice cookers, and electric curtains. * Supports up to 8 scheduled, countdown, or loop timers per device. * Voice Control: Compatible with Amazon Alexa, Google Home, Google Nest, and IFTTT. Specifications: Working voltage: 5V / 7–32V DC Indicator: Includes signal indicator and relay status light Two input interfaces: Terminal block input DC 7–32V & USB DC 5V Supports control of devices with different voltage ranges USB port power supply for added convenience Board power consumption: <1W Standby current: 80mA Input current: 10A; Wattage: 2200W 4 Channel Total Load: 10A / 2200W Single Channel Load: 10A / 2200W Relay lifespan: 1,000,000 cycles Electrical insulation resistance: 100MΩ Withstand voltage: 1000V Relay maximum pull-in time: 15ms Relay maximum release time: 5ms Working modes: Momentary / self-locking, Interlock Transmission mode: Wi-Fi communication Wireless standard: 2.4GHz, 802.11 b/g/n Mobile app: EWeLink for Android and iOS Application: Smart home automation, WiFi control Control distance: Unlimited (via internet) Controlled channels: 4 Enclosure material: Fire-retardant ABS Operating temperature: -40°C to +70°C Operating humidity: 40% ~ 80% RH Item size: 74 x 73 x 24 mm Package size: Approx. 10.5 x 8.5 x 4 cm / 4.1 x 3.3 x 1.6 in Package weight: Approx. 115g / 4oz Packing List: 1 x 4CH WiFi Switch Module