Sonoff Basic R4 is an affordable Wi-Fi smart switch powered by the advanced ESP32 chip for faster, more stable performance. With Magic Switch Mode, control devices via the app even if the wall switch is off. Acts as an eWeLink-Remote gateway for local two-way control with sub-devices like S-MATE2. Includes thermal protection for safety. Ideal for smart home beginners upgrading lights, fans, or appliances. Features of Sonoff Basic R4 Equipped with ESP32 – Smarter Core, Better Performance — Equipped with the new-generation ESP32 chip, BASICR4 delivers faster response, more stable connectivity, and enhanced processing power — all while keeping it cost-effective for your smart home setup. Magic Switch Mode – Smart Even When Wall Switch is Off — Thanks to its unique Magic Switch Mode, you can still control your lights from the app, even if a traditional wall switch has been turned off. Enjoy continuous remote access and automation. Built-in eWeLink-Remote Gateway – Unlock Local Two-Way Control — As a gateway device for eWeLink-Remote, BASICR4 lets you pair with S-Mate2, R5, and other remote sub-devices. Set up two-way or multi-way control, and enjoy low-latency local control without relying on Wi-Fi. Group Control – Smarter Management of Multiple Devices — Easily group your devices by room or scene, and control multiple switches simultaneously via the app. Save time and simplify your daily routines. Certified Safety with Real-Time Thermal Protection — Features a built-in temperature sensor that continuously monitors internal heat levels. Automatically cuts off power in case of overheating, protecting your home from risks like deformation, fire, or exposure to live wires. Certified by CE, FCC, ETL, and more. Specification for Sonoff Basic R4 Input: 100-240V AC 50/60Hz; Output: 100-240V AC 50/60Hz; Max.Load: 10A / 2400W; Wi-Fi: IEEE 802.11 b/g/n 2.4GHz; Material: PC V0; Box Size: 88 x 39 x 24 mm; Weight: 46g
