The AP LED lights are $40. I think you can red, blue, or white. They don't change color and are just on or off. I'll likely set mine on a timer, and I believe you can run them on a dimmer if you want. They do a nice job with them. They cut about a 1/4" wide channel in the roof of the enclosure and the LED strip sits inside that groove. Then they drill a hole out the top with a channel for the power cord to come out and lay. Very neat and tidy, and you can stack another cage on top and it will still sit flush.
Like I said, if you want to change the colors, I'd get the kit on Amazon, and wire it up yourself. I liked the white LED's and honestly, it was worth the extra $20 in my opinion to just have it done and me not have to worry about it. I guess I took the lazy approach. I can try to get some pictures tonight or tomorrow.