I have about 20 or so pair of these lights. They are the same as blazer lights that mount under the dash. The wires will have to be extended and you hook them into your orange and white dome light wiring. They really help out. I have a limited quantity of black ones. All have been tested btw. They come with working bulbs. Some bulbs may be older. If they do not work when you get them then it happened in shipping. All work before shipping. I will get more when I run out weather permitting. If I run out post anyway that you want some and I'll pm you as soon as I get them in. (( 20.00 a pair shipped ))