Bought a jeep that came with these. Had to figure out how to operate them on my own because previous owner included no information. Once I did, they are fairly easy to operate through the app(s). LOVE their brightness and how easy they make it to read road signs, plus the color/temperature of the lights themselves. My only real complaint is that once you get the halo color you want, they will be fine for a while, but then something (still don't know what) will happen and they will flip back to "demo" mode, going through ALL the colors, and you'll look like a freaking pride parade as you drive around until someone is kind enough to tell you what's going on.