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Sonoff Dual Lite (R3) 2-gang WiFi smart relay

Sonoff Dual R3 Lite is a WiFi-equipped smart switch relay, a 2-gang smart WiFi relay with scheduling and remote control capability. The Lite version does not have consumption measurement function and is not suitable for calibrated control of blinds and roller shutters.

However, it has a motor control mode, therefore it is suitable for two-way motor control, but it cannot detect end positions, nor percentage based roller shutter control. It can be used to control two independent circuits, or even placed behind a double switch in a wall socket.

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Factory SKU ID:
Supported protocols:
Wi-Fi, eWeLink-Remote (hub)
in stock (30+ pcs)

Sonoff Dual Lite R3 is the limited-feature version of the popular Sonoff Dual R3 2-gang relay. This 2-gang smart WiFi relay version does NOT have power metering feature, therefore it cannot be calibrated for roller shutter end-points and does not support percentage based roller shutter control. DUAL LITE R3  is a Wi-Fi smart dual relay switch module, which can be installed in larger wall sockets ans supports switching from wired wall switches, as well as, from eWeLink app through the internet. You may use it to control 2 gang of lights or swicth 2 independent electrical circuits.

It has a motor mode (activating interlock mode), and can control 2-way motors, but does not support calibration or end-points. In switch mode, you may use it to control and schedule 2 independent gangs. 

Its holder adapter can be attached to wall with screws or used to fix it on a DIN-rail of an electric box.

Two working modes available. DUAL R3 Lite comes with switch mode and motor mode. Motor mode is suggested for 2-way motor control (but without percentage level precision control). In switch mode its 2 relays can be independently switched.

Double two-way control. The double relay switch module distributes the load to two inputs compared to the simple relay, with this working mechanism lets you have two-way control for two devices independently. 

Powerful compatibility. In eWeLink app, you can manage your relay gangs to turn on/off. Designed to work with more switch types like the momentary switch, rocker switch, ON/OFF switch, dual momentary switch and ON/OFF/ON switch and then you can control your home appliances or lights.

Siri voice control. By setting up Siri shortcut in eWeLink that allows you to control your curtains with your voice. 


  • Gang: 2
  • Power Supply: 100-240V AC
  • Max Power:  3300W(total) / 2200W(1 gang), in case of motors: 10W-240W load is supported.
  • Color: White
  • DIN-rail compatible - its adapter (part of the product) can be plugged to an electric box with DIN-rail.
  • WiFi standards: 802.11 b/g/n
  • Security Mechanism: WPA-PSK/WPA2-PSK
  • Humidity: 5%-95%RH, Non-condensing
  • Enclosure Material: Fire-retardant ABS V0
  • Operating Temperature: -10ºC - 40ºC
  • Product Dimensions: 54*49*24mm,
    (Note: it does not fit inside a 60mm EU standard wall socket)


Product features:

  • Remote ON / OFF – Anytime, anywhere, from now on you can turn all your appliances on and off remotely.
  • Mobil App – free iOS and Android mobil App: eWeLink
  • Sync status – Check actual relay status (turned ON or OFF) with the mobile App
  • Timer – Various timer functions: single time, scheduled turn on/off, countdown/timer.
  • Share control – Control the device together with your family
  • Group control – Turn ON / OFF a gang of devices with one tap
  • Smart scene – Triggered ON/OFF by temp, hum or other environmental sensors
  • Compatibility – Works perfectly with Amazon Alexa, Google Assistant, IFTTT and Google Nest

Product type:
2-gang smart switch
Device power supply:
110V-240V AC
DIN rail compatible:
Operating temperature range:
-10℃ – 40℃
Dimmer feature:
Power consumption metering:
Number of gangs / circuits:
Rated voltage (output):
100V-240V AC
Rated current (output):
2200W/10A per gang, total 3300W/15A. Motor load: 10-240W (1A)
Physical on/off button on device:
External switch supported:
yes, 2 switch inputs (230V live)
2-way or 3-way switching:
Interlock mode:
yes, in motor mode
Wi-Fi standards:
802.11 b/g/n (2.4GHz)
RF transmitter / receiver:
Bluetooth pairing with phone
Controllable from internet:
Manufacturer smartphone app:
yes, free app: eWeLink (Android, iOS)
Voice control:
Amazon Alexa and Google Assistant compatible
Cloud mode:
default mode is connecting to the eWeLink cloud
Schedulers, timers:
yes (single time, schedule, timer/countdown)
80 g/pcs
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Sonoff Dual Lite (R3) 2-gang WiFi smart relay
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