SONOFF BASICR4 WiFi Smart Switch ESP32 Magic Switch Mode eWeLink Alexa

Upgrade your home lighting and appliances with the SONOFF BASICR4, a compact Wi-Fi smart switch built around the powerful ESP32 chip. It installs behind your existing wall switch or inside a junction box and brings full app and voice control to lights, fans and other everyday devices without replacing your fixtures.

The BASICR4 adds three standout upgrades over earlier models: Magic Switch Mode, auxiliary overheating protection and eWeLink-Remote control. Even when a traditional wall switch is turned off, Magic Switch Mode keeps the smart switch reachable through the app, so your routines and voice commands never lose connection.

With the built-in temperature sensor and ETL, CE and FCC certifications, this module is designed for reliable, safe daily operation in any modern smart home.

• Brand : SONOFF
• Model : BASICR4
• Input / Output : 100-240 V AC 50/60 Hz
• Max Power : 2400 W at 240 V
• Material : PC V0 flame-retardant housing
• Dimensions : 88 x 39 x 24 mm
• Operating Temperature : -10 °C to 40 °C

• ✓ Magic Switch Mode keeps app control working even when the wall switch is off
• ✓ Built-in temperature sensor with auxiliary overheating protection for safer operation
• ✓ Pair with S-MATE2 or R5 for two-way and local control through eWeLink-Remote
• ✓ Works with Amazon Alexa and Google Assistant for hands-free voice control
• ✓ Compact design fits behind most standard wall switches and junction boxes

Use the BASICR4 to make lights, fans and small appliances smart in minutes. Control them remotely through the eWeLink app, set timers and schedules, define power-on states and build scenes that automate your daily routine. Voice control through Alexa or Google adds effortless hands-free operation.

Suitable for interior wall and ceiling installations in homes, apartments and small commercial spaces. Available in multiple pack sizes; choose the quantity you need from the drop-down menu.

• SONOFF BASICR4 Wi-Fi smart switch (quantity depends on the pack size selected)
• Quick start documentation