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Zigbee WiFi Mini Smart Switch Relay Module 2 Way Dual-Mode Control 16A Switch for Smart Home Automation, Compatible with Alexa Google Home: Amazon.com: Tools & Home Improvement
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Relay Controller | 2ch Wifi Switch | Automation | Domoticz | Kincony - 2ch Relay Controller - Aliexpress
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capacitor - Power a 12V DC wifi-router using 6V relay as switch between two power sources - Electrical Engineering Stack Exchange
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