Works with Home Assistant
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Sonoff S20 Smart Socket

Category: Power

Updated Oct 24, 2025

Sonoff S20 Smart Socket

Description

Highlights

  • Wi-Fi smart plug available in multiple plug types (EU, UK, AU, US) with 10 A relay.
  • Ships with eWeLink cloud firmware but popular for ESP8266-based custom firmware (Tasmota/ESPurna) enabling local MQTT control.
  • Includes manual power button and LED indicator for pairing feedback.

Budget-friendly option when you are comfortable flashing alternative firmware for full local control.

Flash custom firmware such as Tasmota and configure MQTT credentials to integrate with Home Assistant.

Connection Path

Hubs

Via supported protocols

Protocol: wifi

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Gallery

Sonoff S20 Smart Socket

Key resources

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