SONOFF Dual Relay Two Way Power Metering Smart Switch Lite – DUALR3 Lite

The SONOFF DualR3 Lite is a powerful and compact dual-relay smart switch designed to upgrade traditional electrical systems into intelligent, app-controlled solutions. It allows independent control of two circuits from a single device, making it ideal for lighting, fans, appliances, or curtain motor applications. With support for the eWeLink mobile app, users can remotely control devices, monitor status, set schedules, and create smart automation scenes from anywhere. The DualR3 Lite also supports manual wall switch operation and hands-free voice control through Amazon Alexa and Google Assistant. Its compact form factor ensures easy installation inside standard wall boxes or behind existing switches. Built with fire-retardant PC V0 housing and integrated overload protection, the DualR3 Lite delivers safe, reliable, and long-term performance for modern smart home environments. Technical Specifications Specification Details Model SONOFF DualR3 Lite Number of Relays 2 Input Voltage 100–240 V AC, 50/60 Hz Maximum Load 13 A per relay / 26 A total Wi-Fi Standard IEEE 802.11 b/g/n (2.4 GHz) App Support eWeLink (iOS / Android) Voice Assistants Amazon Alexa, Google Assistant Operating Temperature -10 °C to +40 °C Material Fireproof PC V0 Certifications CE, FCC, RoHS Applications Smart lighting systems Curtain and blind motor control Fans and small appliances In-wall smart switch upgrades Home automation projects