Sonoff · BASICR4

Sonoff BASICR4 Wi-Fi smart switch 10 A with Magic Switch Mode

Name: Sonoff BASICR4 Wi-Fi smart switch 10 A with Magic Switch Mode
Brand: Sonoff
SKU: SONOFF-BASICR4
Price: 199 MDL
Availability: InStock

199 MDLIn stock

Relays & in-wall modules

Wi-Fi

Manufacturer images

199 MDLIn stock

Buy with installation

Check compatibility

Connectivity: Wi-Fi
Channels (relays): 1
Neutral wire (N): Required

A watering valve on a schedule, a heater on a timer, garage lighting from your phone — the BASICR4 covers these first automation jobs with one 10 A channel at minimal cost.

No separate hub required

Connects to the router over Wi-Fi and is added directly in eWeLink; no separate gateway is needed.

Source ↗

36 specifications from manufacturer documents

We deliver across Moldova. Availability, delivery timing and cost are confirmed with a manager before order fulfilment.

The right choice starts with specifications

Device passport

SKU: SONOFF-BASICR4 · Document model: BASICR4

Specifications checked against the linked manufacturer documents. Load limits, package details and measurement conditions are retained.Checked 18 October 2026

Connectivity and compatibility10

Connectivity — what it means The wireless link or network the device uses. Wi-Fi connects straight to the router; Zigbee, Thread and Bluetooth Mesh work through a hub or gateway.	Wi-FiWi-Fi IEEE 802.11 b/g/n 2.4 GHz. The module also acts as an eWeLink-Remote gateway for Sonoff remotes (R5, S-Mate2); BLE 2402–2480 MHz is listed in the EU declaration [1]
Hub required — what it means Whether the device needs a separate hub, gateway or coordinator to work in a smart home. If so, it is sold separately unless stated otherwise.	No hub neededConnects to the router over Wi-Fi and is added directly in eWeLink; no separate gateway is needed [1]
Matter support — what it means Whether the device supports the Matter standard, directly or through a bridge. Matter lets you add it to Apple Home, Google Home, Alexa and Home Assistant.	Via the maker's bridge hubNo built-in Matter. The maker offers adding non-Matter Wi-Fi devices to Apple Home, Google Home, Alexa, SmartThings and Home Assistant through the eWeLink CUBE software Matter bridge (free local software) [3]
Works without internet — what it means Whether the device keeps working over the local network or through a hub when the internet is down. Cloud features (remote access, voice assistants) need the internet.	YeseWeLink LAN mode: the app controls the device directly through the router, without the cloud. eWeLink-Remote remotes work with the module locally [1]
Home Assistant — what it means How the device connects to Home Assistant: a built-in integration, a Zigbee coordinator, Matter or the maker’s cloud integration.	Via the maker's integrationOfficially via the eWeLink CUBE Matter bridge: the maker lists Home Assistant among that bridge's platforms. The maker does not describe a direct Home Assistant integration for this model [5]
App — what it means The maker’s app used to set up and control the device.	eWeLink [1]
Processor / radio chip — what it means The microcontroller or radio module inside, per the maker (for example ESP32). For firmware such as WLED and ESPHome it determines available features and whether the device can be re-flashed.	ESP32-C3FN4 [1]
Wi-Fi	IEEE 802.11 b/g/n, 2.4 GHz [1]
Radio frequencies and transmit power	Wi-Fi 2412–2472 MHz, ≤20 dBm; BLE 2402–2480 MHz, ≤13 dBm (EU) [2]
Third-party platforms (via eWeLink)	Alexa, Google Home, IFTTT, SmartThings, Alice [1]

Control and features8

Channels (relays) — what it means How many independent loads the module switches: 1 — one light circuit or appliance, 2 — two circuits (e.g. chandelier and accent lights), 4 — a panel unit for several circuits.	1 [1]
Wired wall switch input — what it means Whether you can keep an ordinary wall switch or push button and wire it to the module, so the light works from both the switch and the app. Shows which switch types are supported; on dimmers a momentary button usually also adjusts brightness when held.	Rocker switch (latching)Magic Switch Mode: an ordinary double-pole rocker switch stays upstream of the module with its L1 and L2 terminals bridged, so the module stays online when the switch is off. eWeLink only; lamps 3–100 W (LED, energy-saving, incandescent). There is no separate push-button input [1]
Energy metering — what it means Whether the switch shows in the app how much the connected appliance uses: live power and accumulated kWh.	NoNo consumption metering in the specifications or the eWeLink feature list [1]
Detached key mode (scene button) — what it means The switch wired to the module can be decoupled from the relay: the load stays powered and a press runs a scene. Needed when the circuit has smart bulbs.	NoThe model is not in Sonoff's official list of devices with the Detach Relay feature [4]
Special relay modes — what it means Modes beyond on/off. Pulse: the relay switches itself off after a set time (bell, lock, gate). Interlock stops two channels being on at once. Motor mode drives curtains or a gate: up, down, stop.	Pulse / auto-off timer (inching)Inching: auto-off or auto-on after 0.5 s – 23 h 59 min 59.5 s [1]
Overheat protection — what it means The module cuts or reduces the load by itself if it gets too hot inside the box. A dimmer in a cramped wall box heats up more than an ordinary relay.	YesA built-in temperature sensor cuts the load on overheating; auxiliary protection, not a replacement for a circuit breaker [1]
eWeLink-Remote gateway	YesPairs eWeLink-Remote remotes and switches (R5, S-Mate2) for local control [5]
Power-on state after outage	On / Off / Last state; with an adjustable delay of 0.5 s – 59 min 59.5 s [1]

Housing and installation8

Neutral wire (N) — what it means Whether the wall box needs a neutral wire. Older wiring often brings only the live wire to the switch; then pick a model that works without N.	RequiredN/L input and N/L output terminals; neutral and live are both wired to the module [1]
Mounting — what it means How and where it is installed: in a wall box, on a wall or ceiling, on a DIN rail, on a table or in a socket.	Surface / inline on the cableInline housing on the cable; the lower cover screws to the wall and a protective cover closes the terminals [2]
Dimensions (W × H × D) — what it means The device’s size in millimetres as the maker states it. Check that it fits the wall box, niche or shelf.	88 × 39 × 24 mm [1]
Weight — what it means The device’s weight without packaging, per the maker.	45.8 g [1]
Housing material	PC V0 (flame-retardant polycarbonate) [1]
Certifications — what it means Standards and certifications the maker lists for this model (for example CE, RoHS, Zigbee 3.0, Matter).	ISED, FCC, RoHS, ETL, CE, SRRCStandards: EN IEC 60669-2-1, UL 60730-1, CSA E 60730-1 [1]
Wire size	Copper only, 16–18 AWG (≈0.75–1.5 mm²), solid or stranded; tightening torque 3.5 lb-in (≈0.4 N·m) [1]
Upstream circuit breaker	MCB or RCBO rated 10 A [1]

Power and load7

Max current per channel — what it means Highest current through one relay with a resistive load. 10 A at 230 V is about 2,300 W of heater or incandescent lamps; for LEDs and motors the permitted load is lower.	10 A10 A resistive load; 100–240 V AC [1]
Dry contact (volt-free output) — what it means The relay only opens or closes its contacts without putting voltage on them. This is how boilers, gates, barriers and other devices with a control input are connected.	NoThe right-hand L terminal is a live 100–240 V AC output, not a volt-free contact [1]
Max total current — what it means Current the device handles across all channels at once. On multi-channel models the total is often lower than per-channel current × number of channels.	10 A [1]
Max power per channel (resistive) — what it means Power of incandescent lamps, heaters and other resistive loads per channel at 220–240 V. For LEDs, motors and power supplies the permitted power is lower.	2400 WAt 240 V [1]
LED load per channel — what it means Total LED lamp wattage per channel that the maker allows. Add up the watts of all lamps on that circuit and compare; for dimmers only dimmable lamps count. If the maker gives the figure in VA or as a total for all channels, the note says so.	Not stated by the manufacturer
Module power supply — what it means Where the device gets its power: 230 V mains, an adapter, USB, batteries or a built-in battery.	AC mains [1]
Supply voltage — what it means The supply voltage (and current, if stated) as the maker gives it. It must match your mains or adapter.	100–240 V AC, 50/60 Hz, max 10 A [1]

Model and version1

Colour — what it means The housing colour of this model. Other colours in the same series are separate products.	White [1]

Operating conditions2

Operating temperature — what it means The air temperature range the device is rated for. The lower limit matters outdoors, on balconies and in unheated rooms.	−10…40 °C [1]
Operating humidity — what it means The rated relative humidity range, non-condensing.	10–95%Non-condensing [1]

Package contents1

Manufacturer warranty — what it means The warranty period the maker states. Confirm warranty terms in Moldova with the seller.	24 months“2-Year Hassle-Free Warranty” in the official SONOFF store [5]

Differences between manufacturer documents

The table shows the primary document’s value. Below is what other manufacturer documents state; we check the supplied version’s label before sale.

Processor / radio chip: The 'Highlights' block on the same page mistakenly mentions an EFR32 chip

Manufacturer documents

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Delivery and stock

We deliver across Moldova. Availability, delivery timing and cost are confirmed with a manager before order fulfilment.

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A website order is submitted for confirmation without charging your card. The payment method and final amount are agreed with a manager before payment.

Warranty and documents

The warranty is at least 12 months. The exact period and conditions for equipment and installation work are stated in the sales documents and the accepted proposal. Further support is agreed for each project.

Can I return the product?

Current conditions are published on the Return policy page. Email office@casasmart.md with your order number for the steps relevant to your situation. Statutory consumer rights continue to apply.

Delivery, payment and returns

In your home

Your home greets you with light — even at night.

With your hands full or on a nighttime trip down the hall, finding a switch is awkward. Routines light the way and turn off forgotten lights.

See the complete solution

A hallway at night with soft floor-level lighting — An example routineWalk in — the light turns on by itself.

What to check before buying

A neutral wire (N) is required: check it is in the back box, the box depth, the rated load and the manufacturer diagram.
Check Wi-Fi band, app, region and internet requirements.

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