Sonoff Basic R4

This switch connects directly to 2.4GHz Wi-Fi, allowing users to turn devices on/off remotely, set schedules, and create smart scenes. It supports multi-control setups, including rocker switches, push buttons, and detached switch mode, making it adaptable to various wiring configurations.

The R4 introduces Magic Switch Mode, which allows control of lights even when a traditional wall switch is turned off—ideal for retrofitting older homes. It also includes auxiliary overheating protection and TVS surge protection, ensuring safe operation in harsh electrical environments.

The device is Matter-ready, meaning future firmware updates may allow integration with Apple Home, Google Home, and other Matter-compatible platforms. It supports offline LAN control, so automations continue even without internet access.

Key Features

• Wi-Fi connectivity (2.4GHz, no hub required)
• Remote control via eWeLink app
• Voice control via Alexa and Google Assistant
• Supports up to 10A / 2200W loads
• Magic Switch Mode for enhanced wall switch compatibility
• Multi-control support (rocker, push button, detached mode)
• Overheating and surge protection
• Offline LAN control
• Matter-ready design for future smart home integration
• Ideal for lights, fans, heaters, and small appliances

Technical Specifications

• Model: Sonoff Basic R4
• Chipset: ESP32
• Max Load: 10A / 2200W
• Voltage Range: 100–240V AC
• Control Modes: Magic Switch, Multi-Control, LAN
• Connectivity: Wi-Fi 2.4GHz
• App Support: eWeLink
• Voice Assistants: Alexa, Google Assistant
• Dimensions: Approx. 88 mm × 39 mm × 24 mm
• Safety Features: Overheating protection, TVS surge protection
• Material: PC V0 flame-retardant plastic
• Mounting Type: Inline module (non-DIN rail)
• Application: Smart control of lights and appliances
• Colour: White