12V Relay Remote Switch Wireless RF Remote Control Switch 4 Channel Relay Module 433Mhz Transmitter Receiver Kit Universal Remote Controller for Lights Ceiling Fan Garage Door Opener Gate Car & More

I built a camper in 2019 and have been upgrading it. I wanted to add more light so added 8 more puck lights in the process of installing a cedar ceiling. They are on an overall remote control linked in with 6 lights in the kitchen area. That gives me overall control over the on/off and dimmer function.I wanted to be able to control the on/off function of the 8 new lights individually in zones of 2 lights. The little remote circuit allowed me to do that. Each 2 light string was connected in series into a central distribution box. I just broke the positive line to each string and inserted the relay on the new board. That worked giving me on/off control for each leg individually. Worked like a charm. I would buy again in a heartbeat.I especially liked the wire terminals. I was able to crank down on the wires quite hard. Nothing stripped. I know those wires are not coming out any time soon.All soldering seemed quite good and programming was very easy. This was a great buy. I wish I could say the same for many other electronic circuits I have bought.

Used it as a remote to latch my lock and unlock door switch on my ford explorer police utility. Works flawlessly. $18 is way cheaper than paying $100s at the dealer for oem.

It will randomly turn your device on and off. Very dangerous!!I tried adding filters and even used a metal box to isolate it, but I still can not fix the problem. This unit has a design failure.

We use this to open an access control door remotely by "triggering" a handy cap button input. Worked great all summer. Winter came and we started having random door openings towards the end of the work day. Finally figured out that car remote start key fobs were triggering the device. Apparently car remote starts work on the same frequency as this device causing false activations.We moved another relay on the device and it stopped. I'm thinking a re-pairing on the remotes may fix the problem as well, but we have not tried that yet.

This is a pretty nice set, good for power relay control. If you need more ampacity than these relays can provide, simply have these relays trigger some bigger ones! It's pretty neat that you can switch between latching/toggle etc. by moving the jumper, very thoughtful design. Also, the remotes have a blue protective film on them, it peels off to reveal stainless underneath.

The relay board worked as expected and was perfect for my project, however it suddenly quit and an email to the seller resulted in a very prompt replacement. The new board is working great and will be used to remotely start my emergency generator.

Got this working on my hydraulic trailer, but needed more than explained in the directions. I cannot find any reviewers who explain what to do when you need to power a common point on both directions. My hydraulic pump has two electrically-activated valves-one for up, one for down-but I also need power to the solenoid that controls the pump motor, and this power has to be on for either dirextion. One relay from this remote goes to the up valve. One relay goes to the down valve. I could have run a third relay for the pump motor, but would then have to push two buttons to operate the trailer hydraulic. Solution: tee the power from each valve through a diode and then to the pump solenoid. You have to install diodes to keep power from either valve from back-feeding through the solenoid to the other valve. Once that solution was implemented, it works great. Haven't played around with it enough to have a good sense of what distance the fob reliably talks to the relay. May update the review when I next need to run the trailer and have time to experiment.

Web searches (on the subject) may result in many instructions of the controller which may not apply to the product you bought. They are interesting anyway.The machine-translated manual of GV-RK04S-12 may not completely satisfy many readers, but the content of it is valid. Interesting find!You find the jumper underneath the learning button, right? You count the pins from left to right: 1-2-3. Jumping 1 o 2 you'd have the loads (lights) moving from one to another (remember the ring counter); No jumps at all (3 pins are free: momentary mode; Jump 2 to 3: toggle mode. That's it! Read the whole manual? May be you don't have to. JUST PLAY WITH THE JUMPERS. (If for the moment you don't need the jumper, save it.)Please stick to the attached manual (or just play with the jumper!) Fun guarranted.

Una excelente herramienta de control de acceso a precio muy accesible.Muy buena calidad y operación.

Bought this to add to my vehicles surrounding lights. Very awesome to now go camping and when needing light around the campsite it’s just a matter of a push of a button to get some lights on.

Very nice

استخدمته لفتح باب خارجي وكل يعمل جيد بس يفتح ولا يقفل اذا استخدم لوحده 👍🏻

In the description was Only mention of the jumper to switch between toggle or latched mode. No information how to program the 4 relays. Means only two are working out of 4.I cannot find instructions online although I tried very hard.