I used this on a Jeep TJ to add lighting and other add-ons (water pump, etc.). It makes the installation cleaner. I mounted the remote unit on the top of the window frame. And it's perfect! I like the available functions. I wanted the ability to use it remotely for times when I am in my roof-top-tent (RTT), e.g if I heard a noise I can use my phone and the available app to remotely turn-on all of my LED lights (all around the Jeep); I was concerned it would not have the ability/reception in the RTT- no problems! I can control this while sitting at the campsite.In the Jeep, it's not an easy installation as there is no really clean place to install the controller. I installed on a frame that I fabricated and placed above the battery. I used a double-pole/double-throw switch to allow normal connection to the ignition/accessory OR a connection to the battery for times when I am camping and want to be able to turn on the surrounding lights remotely. Works great. NOTE: I have the best battery you can buy so I don't have to worry about running it down.This unit is not cheap, but it does exactly what I needed. I highly recommend it.