The lights installed easily and fit well. While they are expensive, they seem to be manufactured well. We have had numerous neighbors call during harvest to ask " What on earth kind of lights do you have on that tractor? ". The guys running the combine and cotton stripper have had to look down when he's coming at them, to keep from being blinded! If the bulbs have the lifespan they should, it will be a good purchase and investment. We will be purchasing others in the future.