It was probably a mistake the seller listed it cheap with free shipping, I just checked and it appear the shipping is about $25 LOL, I got a great deal though, but I’m not sure if it will work yet.
Profession Industry Dual Power Automatic Transfer Switch 63A 110V Toggle Switch
Yeah I know there’s already a device for this purpose. My goal to get the power automatically transferred to power company when solar battery drained, but the device cost $500 are you kidding me, not worth for my purpose and testing experimenting.
