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A Compact, Versatile Light Control Solution for Home or Office
The Sonoff Mini R4 Extreme is a smart switch designed to bring seamless lighting control to almost any home or office. Its ultra-compact form factor fits inside most standard light switch housings and supports 100–240V AC up to 10 amps.
You can operate it via a standard wall switch, scheduled automation, or manually through the eWeLink app — giving you both traditional and smart control in one package.
⚠️ Important Note: This switch requires a neutral wire at the installation point — a feature that may not be available in many older South African homes.
[Read our full review here.]
| Technical Specifications – Sonoff Mini R4 Extreme | |
|---|---|
| Model | Sonoff Mini R4 Extreme (MINIR4) |
| Input Voltage | 100–240V AC, 50/60Hz |
| Output Voltage | Same as input (passthrough) |
| Maximum Load | 10A / 2400W (resistive load) |
| Connectivity | 2.4GHz Wi-Fi (802.11 b/g/n) |
| App Control | eWeLink (iOS & Android) |
| Smart Features | Scheduling, inching, remote access, LAN control, scenes |
| External Switch Modes | Supports rocker, momentary, SPDT switches |
| eWeLink-Remote Support | Yes – pairs with S-Mate2 for remote scene control |
| Device Type | Single-channel relay switch |
| Certifications | CE / FCC / UKCA / ETL |
| Operating Temperature | -10°C to 40°C (14°F to 104°F) |
| Dimensions | 38mm × 33mm × 19.5mm |
| Form Factor | Ultra-compact (fits behind most wall switches) |
| Weatherproof | No – install in a weatherproof enclosure if used outdoors |
| Environment | Indoor use only |
