12V Fuse Relay Box with 4 Relays, 12 ATC/ATO Fuses, Pre-Wired, Black, Panel Mount, Automatic Operation, Automotive Fuse Holder

Disappointed with the power feed wiring to the relays. They used 2.5mm² wiring as power feed to the relay, which is good for 25amp. They provide 40amp relays, so it's not safe to use those relays above 25amp. Provides a real limitation.

Worked well has multiple relays and lots of wiring. Note that all the grounds are looped together so if you want the ground side control, you will have to modify this relay pack overall the qualities quite decent and works as advertised.

For the price, this is a solid box! Having the 4 relays and extra fused power slots is a bonus. Another reviewer already mentioned how it's wired so I won't go into that part, but 2x red wires are main power, black is the daisy-chained ground, white is your trigger wires, yellow goes to your relayed devices, and the blues are just regular fused power. I used this in my 2002 VW Golf for a couple sets of fog lights, underhood lighting, and a lift pump. I wanted to clean up the battery terminals. As you can see in my images, I basically connected the 14 AWG power wires together, which gives this entire box around 40-50A rating. I'm protecting the entire box with a resettable, 40A breaker as a "just in case". From the breaker to the battery I just made an 8AWG jumper which can also handle 40A. The box mounts up nicely with some M6 screws. Couple things to note: Box is NOT waterproof. So place accordingly. As well, the included fuses are cheap. Probably won't last long but I'll run them until they go.

Nice build, good clean wiring, leads not long enough, back wiring completely exposed (kind of defeating the purpose of having the top enclosed), unclear what type of relays are installed (turns out they are wired backwards to most typical relays), wire bundles out the bottom protrude making it hard to mount it flush on anything because the flex of the plastic housing.... Again defeating the purpose of having the top enclosed and the bottom open to the elements.

So far, it works flawlessly. I like it. Easy to install. works well.