Sonoff Basic R4 Wi-Fi Smart Switch

Description

The Sonoff Basic R4 is a compact, affordable Wi-Fi enabled smart switch designed for everyday home automation needs. It transforms standard lighting circuits or appliances into smart, controllable devices by letting you switch them on or off through an app, voice commands or automation routines. Whether you are upgrading a rental, completing a retrofit project or installing a full smart home system, Basic R4 offers an excellent blend of simplicity, reliability and performance for users working with Rohen Services.

Equipped with a powerful ESP32 chip, Basic R4 delivers faster and more stable wireless connectivity compared with older models. Its support for 2.4 GHz Wi-Fi ensures compatibility with typical home networks, while its compact form factor (approximately 88 × 39 × 24 mm) makes it easy to install behind wall switches or inside junction boxes.

For South African homes dealing with unpredictable electricity supply or where convenience matters, Basic R4 provides a practical step toward smart living and integrates well within the broader solutions offered by Rohen Services.

Key Features and Capabilities

• Smart control via app and voice

With Basic R4, you can control connected devices using the companion app (typically eWeLink), set timers, schedules or automation scenes. Voice control (through compatible voice-assistant platforms) is also supported, allowing hands-free operation. RoboFactory+1

• Magic Switch Mode & “eWeLink-Remote” gateway function

Basic R4 introduces a “Magic Switch Mode” — meaning even if you turn off the original wall switch, you can still control the load via app. Additionally, it can act as a gateway (“eWeLink-Remote”) for sub-devices (e.g. sensors or remote controls), enabling two-way and local control when paired with compatible eWeLink accessories like S-Mate2 or R5.

• Safety and reliability

The Sonoff Basic R4 includes a built-in temperature sensor that monitors internal heat levels. If overheating is detected, it automatically cuts off power to prevent risks such as deformation, fire, or live-wire exposure. It holds recognised certifications such as CE, FCC and ETL, which signals compliance with international safety standards.

• High power capacity and compatibility

Sonoff Basic R4 handles input and output voltages of 100–240 V AC (50/60 Hz) — suitable for South Africa’s 230 V mains.  It supports loads up to 2400 W @ 240 V, making it capable of controlling lights, fans, small appliances and many household devices.

• Compact, easy installation

With its compact dimensions and simple wiring, Basic R4 is easy to fit behind existing light switches, inside junction boxes or behind appliances. This makes it a suitable choice for retrofits or new smart-home installations without extensive rewiring.

Use-Cases for South African Homes and SMEs

Residential Use

• Switch lights, fans and appliances remotely — ideal for convenience and energy savings.

• Automate lighting with timers or schedules (e.g. for security when away).

• Use voice control — handy during load-shedding or for elderly/family members.

Small Offices, Guest Houses or SMEs

• Control office lights, equipment or signage outside working hours.

• Manage devices remotely for security or energy-saving.

• Combine with other eWeLink-enabled devices (sensors, plugs) for automation routines.

Retrofits and Rentals

For renters or homeowners not wanting major rewiring, Sonoff Basic R4 offers a low-cost, low-effort path to smart home functionality.

Hobby / DIY Automation Projects

Because of its simple installation and standard mains compatibility, the Sonoff Basic R4 is popular among DIYers building automated lighting, small appliance control or home-automation scenes.

Competitor Positioning

Compared with other budget smart-switches, Sonoff Basic R4 stands out due to its ESP32 chip, Magic Switch Mode, and gateway capability for eWeLink sub-devices. Many competing devices may offer simple on/off control, but few combine app control, automation scenes, thermal protection and gateway functions at this price point. This makes Basic R4 a strong offering for users who want a reliable, expandable smart switch without paying premium prices.