fushionseaDC 12V 40A Relay Remote Control Switch, 1CH Universal 433Mhz Remote Control Wireless Switch 2 Remote Transmitters and 1 Receiver for Latching Module System

It works and does what its supposed to do, not sure what else to say about it.

I had a switch that malfunctioned on my houseboat for a freshwater pump for a washdown hose, I decided to install this remote relay instead of having to flip a switch on every time I could actually carry the remote, I am very impressed as far as the distance that the remote works . I’m very simple hook up. Nice effective way to switch something, amp rating is very high.. quality of remotes seem very good!! I will buy again

I use this to my car for anti theft kill switch

We have a Jeep Cherokee which has a recall for the power liftgate fire hazard (even when the car is not running) due to corrosion on the electrical contacts. Jeep, as yet, has no remedy for this problem and simply did a CYA by recommending owners not park the car in their garage or near any buildings. Very practical...Pulling the fuse avoids the problem, but then you can't use the rear liftgate and have to load and unload the trunk from the passenger compartment by folding the rear seats.I connected this receiver to the fuse box and set the mode to only supply power to the liftgate circuit while the remote button is being held, so you can't possibly leave the circuit powered unintentionally or for an extended period of time. Works great and my Wife loves it (at least compared to parking the car a block away).

Bought this to remote-control on/off a light on a theatre stage - i have an LED light is in a counter (think display case, or jewelry case) where there was no way to run a wire from offstage. So I put a 12v battery under the counter, and used this relay to switch it on/off. The power draw of the light was trivial - maybe 1 amp. This relay worked right out of the box. The range was about 60 feet, fully reliable. They advertise 30 amps capability - there is no way I would switch that much power, especially continuous.