I have an issue. I downloaded the zip and then grabbed the contents of it and dropped it into my ksp folder once I did this I went into the game and the lights did not appear in the utilities section. It did load up though I am sure of it as that loading screen you get when starting up the game it said aviation lights at the bottom I am also in career mode and I am not sure if I have to upgrade or get more science before I can use it.
EDIT: Nvm Found out it's a research thing