Review on EMylo Smart RF Relay Switch With Wireless Remote Control - DC 12V 433Mhz Relay Module For Home Automation - Set Of 2 Transmitters - 1-Channel - 1 Pack by Ralph Foster

I was initially a little confused how to wire these up, but that was entirely me making things harder than they needed to be. Currently I am using two of them,. One to power up my backup cam camera/server for wireless backup camera - which works wonderfully and keeps me from having the cam running 24/7 draining the battery and/or having to wire the cam to the backup lights.Second relay I have doing the duty of energizing two other 40amp relays for LED fog lights. This too works awesome, and made it so I didnt have to butcher the stock harness in my BMW. All in all, a great product.