Review on MICTUNING HD+ 12 Gauge LED Light Bar Wiring Harness Kit: Waterproof Switch, 60Amp Relay, 3 Free Fuse (2 Lead) by Darryl Pendall

I am very happy with this harness. I've used it to connect a light bar that claims 540w (probably not) and it works great. Installation was very easy for me with a few modifications. Using the switch I cut it from the wiring harness at the relay leaving only the blue trigger wire to connect to the high beam at the back of the lamp holder. So the relay sends 12V directly from the battery to the light bar. only when high beam is on. That's great, because I can quickly switch the light bar on or off with the turn signal lever when there's oncoming traffic. So the connections are simple, two thick wires to the battery, through the relay to the lightstrip, then all you have to do is connect the thin blue trigger wire to the positive 12v you want to turn on. The possibilities are endless!