Bought this to install a LED bar on my garden tractor, yes I said garden tractor! I do a lot of plowing in the neighborhood with my tractor and needed this for the late nights or early mornings when I am making a ruckus and waking up neighbors...all to their benefit of course.Anyways, this arrived super fast (thanks Prime), and came with decent enough directions. I do wish it came with a cut out template, that would have made me love it more! A simple piece of paper that I don't have to guess and check to create would be awesome. BUT, it didn't, so I made one out of the cardboard packaging, positioned it where I wanted it on my dash and penciled the cut out. Took the time cut out the dash and make sure it was level and centered for the install. Go in small bits, better to have to shave off then have an oversized hole!The connections were super easy, the directions were great at detailing what to do on the switch end...not so much the battery hook up end so beware you should have a plan before diving into it. After hooking it up to the battery and throwing in my own inline fuse to the LED bar I powered it up and it simply worked. I love the blue light when it is on, especially because I have it hooked up to the battery and not to the on/off key.In short:The good: simple hook up, works, looks great, good directions on the switch end, you can get this switch in many flavors!The bad: none really, would have liked to see it come with a cut out template