Review on General Purpose Power Relay HK19F by Eduardo Davis

I bought these to use as a video signal switcher between CarPlay and a rear view camera on my Audi's MMI screen. It is designed to work on 12V, so when reversing it will switch to the rear view camera when the 12V lights up on the reverse light, and back to the video when driving on CarPlay. It's been running great and stable for a few weeks now. It's great value and works as described, love it. It can be used for many different applications where you have a standard connection and switch to a different connection when 12V is applied to it.