True MODS 1 Pack 5-Pin 12V Bosch Style Waterproof Relay Kit [Harness Socket] [12 AWG Hot Wires] [SPDT] [30/40 Amp] 12 Volt Automotive Marine Relays for Boats Auto Fan Cars

They are Chinese products and not of great Quality but they are Available with fast Delivery. I am located in Southeast Louisiana and I use them in Conjunction with a Float Switch to Serve as a Backup Automatic switch on my Secondary Bilge pump in a Fishing Vessel

This is a nice heavy duty relay.This relay comes with no info. Most of the pins #'s are covered in adhesive and are difficult to read. So I will give the info here. Hopefully this will make your install easier.There are two types of 5 pin relays. Type A and Type B. This is a Type B relay. This is noted by the position of pin 30. I was able to determine this because, lucky for me just enough of the 3 was peaking out from behind the adhesive, to allow me to determine pin 30 location. It is sort of the key or primmer to decoding relay types. (12 volt planet has a nice article on 5 pin relays, if you want professional advice. I am just a guy on amazon, so take my advice for what it is worth)So I am wiring a reverse camera for my 2009 BMW E93 convertible. It did not come with a touch screen head unit, it came with an old school unit with only the basic digital screen. I updated my car with a 7 inch sat/nav with HD screen. Even though this car has pretty good visibility, the screen has backup camera capability, and Amazon offers a pretty cool back up camera that integrates into the tag light. So I figured why not. Well the reverse light is not a constant 12 volt, so I needed a relay to provide constant 12 volt power to the camera, and I use the reverse light as the on switch.My set up:Pin #30...constant 12 volt supply from a fused 15 amp supply line connected directly to my battery. BMW puts these in the trunk, right next to the tail light I am also tapping. (thanks BMW, easy peezy)Pin #85 Ground...attach this to any ground lug on the car bodyPin #86 Switch source... for my BMW this is the black /violet wire to my tail lightPin #87 the red wire on my camera*****Some relays switch position #85 and #86, but form what I understand this is immaterial, because it is just either end of a switch, and so they are reversible, but your application may vary. THe pin positions for #85 ad #86 are unreadable in this relay.The wires on this relay are much heavier gauge (12 & 16 gauge) than the 15 amp circuit I am supplying or the 2 amp draw I am using. But that is to be expected from a 40 amp relay. Just know when you buy butt end connectors, you will need them to fit a heavier gauge. Or by pass the wires and buy 6.3 mm female connectors to connect directly to the relay pins. This however will bypass the waterproofing built in to the male portion of this relay, with the actual wires on it.

Bought and installed this relay a few years ago. Still working flawlessly.

The relay works as long as it’s dry. It was in my car for six months and then it stopped working. I will include a picture below to show you how it got full of water and then rusted under a hood and a project card that has not driven yet

Grandpa got new mirrors for his truck and wanted to get the puddle light working. I used this relay and hooked it up to the door sensor to trigger the puddle light to be on. Great quality. Tight seal and could be used omunder the hood. Not the case for me since it was inside anyway.

My cheapie relay failed on my Harley and this thing is very high quality. Nice thick wires. Nice thick waterproofing.

I used it on my motorcycle for a couple of accessories I want to turn on with the switched ignition. It can be used with NO or NC. It was a little larger than what I expected but I was able to make it fit near the battery.

Great product