The SONOFF SwitchMan Smart Wall Switch‑M5 (M5-3C-86G) is a wall-mounted smart switch series designed for the convenient control of lighting and electrical appliances in modern homes. As part of the switch family, the M5-3C-86G smart light switch can be controlled remotely via the eWeLink app, scheduled, and paired with compatible local remote controllers. It features physical buttons for local operation, but can also be fully managed through a smartphone via the eWeLink app.

The M5 is available in multiple versions (1-gang, 2-gang, or 3-gang, in different formats), offering flexibility for various room types and usage scenarios. The Sonoff SwitchMan M5 (M5-3C-86G) is also Matter-compatible, meaning it works not only with the eWeLink app, but is also compatible with SmartThings and Apple HomeKit platforms.

The switch supports scheduling, scenes, and automation, group control, and works with voice assistants and smart home platforms. It functions both as a manual switch and a full-featured smart controller in modern smart homes. Like other new Sonoff products, it features a Bluetooth receiver and Bluetooth gateway function, allowing remote control via Sonoff Bluetooth wireless devices (e.g. Sonoff S-MATE 2 module, Sonoff R5 switches).

Pulse switching is also supported: the switch can automatically turn off after a preset duration, making it suitable for stairwell light timing. The Wi-Fi status LED can be turned off or dimmed, making it ideal for bedrooms or other low-light environments.

Brand Overview – SONOFF

SONOFF is a globally recognized smart home brand offering affordable, reliable, and easy-to-integrate solutions. Its products support multiple protocols and platforms, including Wi-Fi-based control via the eWeLink app, and offer wide integration with popular smart home ecosystems.

Main Features and Smart Functions

• Smart control: operated via physical buttons or remote control using the app
• Scheduling and timers: customizable ON/OFF times for daily routines
• Group control: control multiple devices simultaneously through the eWeLink app
• Automation and scenes: create logic rules and interactions between devices
• Shared control: easily grant access to family members
• Voice control support: compatible with Alexa and Google Home (depends on eWeLink integration)
• Customizable LED indicator: shows current status, brightness adjustable
• Equipped with eWeLink-Remote (Bluetooth) receiver and gateway – compatible with eWeLink-Remote Hub modules and wireless switches (S-MATE2, R5)
• Free iOS and Android app (eWeLink)
• Status feedback – app displays real-time ON/OFF status of the switch
• Remote ON/OFF – control the switch remotely via smartphone and internet
• Timers – various options including specific time, recurring schedules, countdowns, and cycle timers
• Auto-off timer – switch can be set to automatically turn off after being turned on
• Pulse switching – set the switch to turn on only for a brief duration (e.g. 0.5 or 1 second)
• Sharing – grant remote access to others (e.g. family members)
• Groups and rooms – organize Sonoff and SmartWise devices in the app
• Smart control (Scenes) – create conditional controls between devices (e.g. turning on the light switch also activates a Sonoff S26 or SmartWise S1W smart plug)
• Compatibility – can be connected to Amazon Alexa, Google Assistant, and Google Nest for voice control
• Sonoff and SmartWise products are fully compatible with each other and use the eWeLink app

Smart Home Protocols and Platform Compatibility

• Mobile app: eWeLink (Android and iOS)
• Compatible platforms: Apple Home, Google Home, Samsung SmartThings (depending on integration)
• Local control: via physical buttons

Electrical and Operational Features

• Available in 1-gang (1C), 2-gang (2C), or 3-gang (3C) versions
• Control: physical buttons + smartphone control via eWeLink
• LED indicator: brightness adjustable
• Group control supported

Other Features

• Modern, minimalist white design
• Easy installation into standard EU wall boxes
• Available in multiple button configurations (1/2/3-gang) for different use cases
• Customizable LED light for ambient adaptation

Technical Specifications

• Models:
  120-Type: M5‑1C‑120, M5‑2C‑120, M5‑3C‑120
  86-Type: M5‑1C‑86, M5‑2C‑86, M5‑3C‑86
  80-Type: M5‑1C‑80, M5‑2C‑80, M5‑3C‑80
• MCU: ESP32
• Wireless: IEEE 802.11b/g/n 2.4 GHz Wi‑Fi
• Power rating:
  1C: 100–240 V~ 50/60 Hz 10 A Max
  2C: 100–240 V~ 50/60 Hz 5 A/gang, 10 A total Max
  3C: 100–240 V~ 50/60 Hz 2 A/gang, 6 A total Max
• Max resistive load:
  1C: 2200 W @220 V, 1100 W @110 V
  2C: 1100 W @220 V, 550 W @110 V
  3C: 440 W @220 V, 220 W @110 V
• Max inductive load:
  1C: 300 W @220 V, 150 W @110 V
  2C: 300 W @220 V, 150 W @110 V
  3C: 100 W @220 V, 60 W @110 V
• LED load:
  1C: 300 W @220 V, 150 W @110 V
  2C: 300 W/gang @220 V, 150 W/gang @110 V
  3C: 100 W/gang @220 V, 60 W/gang @110 V
• Dimensions & weight:
  120-Type: 120 × 74 × 41.5 mm, 1C: 166 g, 2C: 174 g, 3C: 176 g
  86-Type: 86 × 86 × 41.5 mm, 1C: 147 g, 2C: 154 g, 3C: 156 g
  80-Type: 86 × 71 × 41.5 mm, 1C: 127 g, 2C: 134 g, 3C: 137 g
• Color: Gray
• Housing material: PCV0
• Indoor use only
• Operating temperature: ‑10 °C to 40 °C
• Operating humidity: 5%–95% RH, non-condensing
• Certifications:
  120-Type: CE, FCC, RoHS
  86-Type: CE, CQC, SRRC, RoHS, UKCA
  80-Type: CE, RoHS, UKCA
• Standard: EN 60669‑2‑1

Important Installation Note

For proper operation, both a phase wire and a neutral wire are required at the switch socket for Wi-Fi light switches.

Installation Tip

• The switch can be mounted with screws on all four sides into the wall box.
• Tip: If the socket box lacks screw holes, the Sonoff M5 switch can be secured using a Legrand mounting frame.