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Sonoff RFR2 Smart Home Light Controller Wired & Wireless is a compact smart switch designed to add remote and automated control to home lighting. Supporting both wired and wireless connections, the device operates on Wi‑Fi with AC power (100–240V) and fits into tight spaces with dimensions of 88 × 39 × 24 mm. RFR2 focuses on safety and reliability through reinforced mechanical design, environmental resistance and fire‑retardant enclosure materials.

Advantages

The RFR2 provides durable mechanical strength with a tested 30 N pull/push resistance and increased creepage and clearance distances (>3 mm) that exceed common regional standards. It is designed for moisture and dust resistance, surviving a 48‑hour 95% relative humidity test at 25°C, and can operate continuously at elevated and low temperatures under rated load. The enclosure is made from Lexan PC940 for UL‑94 V0 flame retardancy, terminals comply with UL 1059, and additional insulation measures (for example, heat‑shrink sleeving over the internal fuse) enhance electrical safety. The unit synchronizes status with the app, supports grouping of devices, voice control via Alexa and Google Home, scheduling and trigger‑based scenes with Sonoff sensors.

Suitable for

• Retrofitting conventional lighting to smart control in homes
• Integrating wired lights into Wi‑Fi smart home systems
• Automating outdoor or indoor circuits that require timed switching

Key specifications

• Model: Sonoff RFR2
• Power supply: AC 100–240 V
• Connectivity: Wi‑Fi (supports wireless & wired control)
• Dimensions: 88 × 39 × 24 mm
• Rated load: up to 10 A (design tests referenced at 10 A)
• Enclosure material: Lexan PC940, UL‑94 V0
• Creepage/clearance: >3 mm
• Compliance references: terminals per UL 1059

How to use

Install the Sonoff RFR2 in-line with the lighting circuit following local electrical codes and ensure wiring connections are secured under the specified terminal screws. Power the device from AC 100–240 V and complete device setup in the Sonoff/Smart Life app to join your Wi‑Fi network. After pairing, you can control the connected light from the app, create groups for unified control, set schedules, and link the device to Sonoff sensors or voice assistants for automated or voice‑activated operation.

Recommendations

For safety and reliable performance, install the RFR2 in a dry, ventilated enclosure, respect the rated load limits, and follow local regulations for fixed wiring installations. Use appropriately rated wiring and secure conductors in terminals to maintain creepage and clearance integrity.