SONOFF BASIC-1GS (Gen 5) – Matter Over Wi-Fi Smart Switch

The Basic Gen5 is a compact, single-channel smart switch designed to be installed behind a wall switch or inside a junction box, enabling you to transform a conventional electrical circuit into a smart, app- and voice-controlled one. It supports input voltages of 100–240 V AC at 50/60 Hz and a maximum resistive load current of 10 A.

Thanks to its built-in support for the Matter protocol, the Basic Gen5 can integrate into a wide range of smart-home ecosystems—including Apple Home, Google Home, Amazon Alexa and platforms like Home Assistant—allowing seamless interoperability with other Matter-enabled devices from different brands.

In terms of connectivity, it uses WiFi (IEEE 802.11 b/g/n on the 2.4 GHz band), meaning you don’t need a separate hub to get it working. The device is rated for reliable local control, so even if your internet connection goes down, you retain basic switching capability.

One of the standout features is the “Magic Switch Mode”, which ensures that the wired wall-switch (or rocker) controlling the circuit can still be used as usual, even after the Basic Gen5 is installed—and in parallel the smart control functionality (via app or voice) remains active. This makes for a seamless upgrade to a smart-switch scenario without losing the tactile conventional switch.

On the user-experience side, you get remote control via the app, voice control, scheduling/timer routines and scene linkage with other devices—so you can automate lights or other loads (within spec) according to time of day, events, or other triggers.

Physically, the unit is small and discreet: its dimensions are approximately 80.5 × 41.5 × 23.6 mm, and it weighs about 44.8 g. The casing is made of PC (polycarbonate) material in white. It uses copper conductors (T40, 16AWG to 14AWG solid/stranded) for wiring.

The operating environment is rated for –10 °C to 40 °C and 5–95% relative humidity (non-condensing). In terms of load types, it supports up to 10 A resistive loads (such as lights, kettles, heaters) but the manufacturer notes inductive loads (e.g., motors) or loads beyond its rating should be avoided.

In summary: the BASIC-1GS is an affordable and versatile smart switch module designed for DIY integration into existing wiring, offering Matter-based smart-home compatibility, local reliability, and seamless usage of the conventional wall switch alongside smart features.

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Specifications

• Input Voltage: 100 – 240 V AC (50 / 60 Hz)
• Maximum Load: 10 A (Resistive load only)
• Wireless Connectivity: Wi-Fi IEEE 802.11 b/g/n (2.4 GHz)
• Control Options: App control, voice control, manual switch, local control
• Smart Protocol: Matter (compatible with Apple Home, Google Home, Alexa, Home Assistant etc.)
• Magic Switch Mode: Allows manual wall switch use alongside smart functions
• Material: Flame-retardant polycarbonate (PC)
• Color: White
• Wiring Type: Copper conductors only (16 AWG – 14 AWG, solid or stranded)
• Operating Temperature: –10 °C to 40 °C
• Operating Humidity: 5 % – 95 % RH (non-condensing)
• Usage Environment: Indoor use only
• Dimensions: 80.5 × 41.5 × 23.6 mm
• Weight: Approx. 44.8 g
• Load Type: Resistive (incandescent lamps, heaters, etc.)
• Mounting Style: Behind switch or junction box installation