There were some caveats, but all in all this was easy enough to install and look good for what they are.. There was plenty of cable and the 4 light bars are peel and stick (more on that below). Plug in to the cigarette lighter, install app, and be on your way. There's also a red-blue flashing option, if you want to get in trouble with the police.The long version:- Installation was easy, but my biggest gripe was that the adhesive pads didn't work great for me, even on a clean, semi-flat surface. I would recommend having some hot glue, zip ties, or adhesive glue like e6000 handy.- The lights aren't super bright, but for my purposes (I ended up shoving them inside my dash board) they work fine. Definitely easier to see at night though. The app also has the option to alter brightness, which is nice.- Without installing the app, the lights cycle through a rainbow-type pattern by default. App install is a requirement if you want to alter this. I don't love needing to rely on the app, as apps seem to come and go. Plus I'm old and fear change.- The app used is Happy Lighting, from the Play Store if you're on Android. You can pre-install and check out the options. - app requires location and network permissions, though I don't believe security is a concern; it needs it to locate the lights. - there are some options in the app to pulse lights along with music played from the phone, and also an option to pulse based on microphone input. Neither seemed to work great for me; I'm sticking with the standard, non-music-based options.- The app acts a little wonky... It was easy to connect and config, but I've had a couple times where the lights would remain off, even if they were physically powered on and the app claimed to be connected. I was able to fix by some combination of clearing the cache, unlinking / re-linking the lights to the app, then changing the light pattern.Hardware:- The lights themselves are housed in non-flexible plastic pods. They seem sturdy enough, but if you're looking to bend around corners then this is not the right type.- There are 2 lights on a pair of shorter cables, around 4.5 feet, and 2 on longer cables, around 5.5 feet, all tied to the junction box in the center, so those are your approximate radiuses from the cigarette lighter. I installed these across the length of my dashboard and had plenty of wire to play with. Reaching a passenger row might be trickier.- The cigarette plug has an on/off button on the top , that glows red when it is on.- There is an unexplained microphone-type hole in the main junction box. It might be something for music or sound recognition, but I haven't gotten it to work at all. Plus the box is probably not going to be anywhere near your speakers.In conclusion, it has some areas for improvement, but for 15 dollars (plus the extra $2 I spent on glue) it would be a good starter set for someone who is interested in beginning the long and potentially expensive journey into car lighting customization.Some attempted low-light pics are included. Now if only I could change my check engine light to green to match my color scheme..