Yep. Just looking at one commercial product that's using it, the Sonoff wifi switch was bought by a lot of people: on Banggood they show that they sold 242338

Yep. Just looking at one commercial product that's using it, the Sonoff wifi switch was bought by a lot of people: on Banggood they show that they sold 242338 of them: https://www.banggood.com/SONOFF-Basic-10A-2200W-WIFI-Wireless-Smart-Switch-Remote-Control-Socket-APP-Timer-p-1019971.html https://www.banggood.com/SONOFF-Basic-10A-2200W-WIFI-Wireles... on Amazon the 4 pack listing has 548 customer reviews and there are other listings with hundreds of reviews and probably lot more people bought it than the reviews. https://www.amazon.com/Sonoff-Remote-Control-Compatible-Android/dp/B078GDFYTY?th=1 https://www.amazon.com/Sonoff-Remote-Control-Compatible-Andr... It's used mostly for lights, fan, AC, heating, so not that much critical, but still lot of devices.