Sonoff MINIR4 smart home light controller Wireless Orange White

The Sonoff MINIR4 smart home light controller is a compact Wi‑Fi module designed to convert traditional wall switches into smart switches. Measuring 39.5 × 33 × 16.8 mm, it fits into a variety of mounting boxes, including the smallest European standard boxes, and supports AC input voltage 100–240 V. The MINIR4 uses an ESP32 chip for dual‑core performance and increased reliability, and is available in orange and white finishes.

Advantages

The MINIR4 is 40% smaller than the previous MINIR2 model, enabling installation in tight spaces. It uses an ultra‑fast ESP32 processor that provides stable operation and sufficient memory for smart‑home tasks. The device is designed and tested with safety certifications including CE, FCC and TÜV, and supports multiple switch types and sensor inputs for broad compatibility.

Suitable for

• Upgrading conventional light switches to smart Wi‑Fi control
• Installation in small European standard mounting boxes
• Integration with momentary switches, SPDT/latching switches and dry contact sensors
• Local control when paired with compatible Sonoff remotes (eWeLink‑Remote)

Key specifications

• Model: Sonoff MINIR4 (MPN: MINIR4, EAN: 6920075740202)
• Dimensions: 39.5 × 33 × 16.8 mm
• Wireless: Wi‑Fi (ESP32)
• Input voltage: AC 100–240 V
• Colors: Orange, White
• Certifications: CE, FCC, TÜV

How to use

Install the MINIR4 inside the wall box behind the existing switch, ensuring power is turned off before wiring. Connect the AC input and output per the wiring diagram supplied with the device, and attach the selected switch or dry contact sensor to the appropriate terminals. Power on the circuit, add the device in the eWeLink app and follow the app pairing steps. Once paired you can control lights via the app, set schedules, or use local control when paired with Sonoff remotes.

Usage recommendations

For reliable operation, mount the MINIR4 in a dry, ventilated electrical box and avoid direct exposure to moisture. Ensure wiring is performed by a qualified person and verify compatibility with your existing switch type. Enable “Detach Relay” in settings if you need the physical switch state to be independent from the relay state for uninterrupted app control.