The DOT was not very happy when my crane lacked the necessary "safety equipment". Which in this case were the 3 small red lights that mark center rear of the vehicle. so I had to build a little light bar and wire some up.
bar is 2x4x 1/8 square tube. I cut 3, 2 3/8" holes with the plasma (hole saw was MIA) and ground them out to round, as my plasma skills were seriously inhibited by the ammount of coffe I had.
Cut caps for the end from some 1/8" x 2" HR flat stock and welded them on
ground the welds down and smoothed them out
here is the light bar ready for some primer
The whole project took less than 2 hours (not including time for the paint to dry). All the steel came from the scrap pile.
I'll grab a picture of it installed and add it.