🔌 EHDIS 4 Pin 12v 40amp Spst Car Relay - Model No.: JD2912-1H-12VDC 40A 14VDC, Pack of 2, Auto Switches & Starters Review

This product works when I switch 12v power from batteries to my HID headlights but it vibrates horribly it sounds like a beehive under my hood. It was a (2) pack and both did the same thing. The only reason I ordered these was to replace the one that came with my relay harness which was vibrating horribly. I think finding a good one is harder than you might think.

Great buy. Works as it should! In my case I used a 4 pin relay to install multiple amplifiers in a car. Not much to say but if you are looking for a solution to your multiple amp powering problems. This is the solution for you. Make sure you also have a busbar to attach each of your remote control wires along with the signal curve. from your HU (head unit).

Excellent value for money! Up to ten packs of high current relays is not much more than what you would pay for one at electronics and auto parts stores. I tested all the relays with a 9V battery between the coils and the multimeter, everything works fine and there are absolutely no defects in the plastic housings, contacts or internal components. Perfect for my custom PDM for my drag car, uses standard 1/4" spade connectors.

the GP light came on during operation and later went off at all on start up). I replaced the glow plug timer (e.g. $90) and no change (very disappointed I had to check the voltmeter at 12 volts as I later did). Then I ordered the wrong relay. I then ordered and installed the above relays and they work great, very satisfied. To fix a faulty glow plug circuit: Remove the side panel (4 screws). See relay kit. In the bottom group of four, the one on the left is the glow plug timer - use a voltmeter