i live on the east coast and work for a trucking company .we have 25 trucks and 75 trailers .6 are kw,and the rest are petes,with 1 lonestar.making the last truck.rear work lights can be red and on all the time if you want,clear only when hooking up or backing under trailr in the dark.. ps the new trucks with the peepeepee tank bight the big 1