really easy to install, they are just stuck to the bottom of the cab using medium strength velcro tape. I wanted to use something that would easily come off the bottom of the cab. The stuff I used is typically used for hanging picture frames on walls, its not something that is suppose to stick forever or destroy the wall.
The LED's have their own plug, and are plugged into the same power strip that the pins are on, when I flip the swich to power the outlet the pins come on as well as the bottom LED's.
They were 40 bucks per LED kit and I got 3 of them. I was hoping to be able to use 1 kit for 2 pins but the cables to power the 4 LED strips in the kit were not long enough to get from one machine to the other. This way looks cleaner anyway. I think I did a good job hiding all the wires under the pins, lucky for me the pins are up against a ledge where all of those cables can go. It would have looked pretty bad if the LED's would have called attention to a rats nest of wires under the pins....a bit on the pricey side but I really like how they look.