![Sonoff Dualr3 Dual Relay Wi-fi Smart Curtain Switch With Power Metering Voice/app Remote Control Double 2-way Diy Switch Module For Light/curtain/blin | Fruugo IT Sonoff Dualr3 Dual Relay Wi-fi Smart Curtain Switch With Power Metering Voice/app Remote Control Double 2-way Diy Switch Module For Light/curtain/blin | Fruugo IT](https://img.fruugo.com/product/2/84/748379842_max.jpg)
Sonoff Dualr3 Dual Relay Wi-fi Smart Curtain Switch With Power Metering Voice/app Remote Control Double 2-way Diy Switch Module For Light/curtain/blin | Fruugo IT
On my two-gang light switch, why does the second switch only work if the other switch is also turned on? - Quora
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