really simple. I wish I had one left as I never took pictures for a how-to. if someone sent me one I would convert it, take pics, post a how-to, and then ship it back.
Use only the basic recon led light bar in the 49" length. By basic, it should have red lights only. No white or amber leds should be on the bar.
I use a bandsaw to cut the unit down to 45" long. It is mostly plastic so a woodcutting bandsaw will work as well as a metal cutting version. Do not cut from the side the cord is on. I cut through the bar and the mounting tab at the same time. A circular saw or jigsaw will work also. A hacksaw or coping saw should work also. I like the power tool cause it cuts fast and doesn't throw the led center strip around which could cause damage. KEEP THE CUT OFF PIECE.
Hold it cut side down (above the ground) and gently thump the bottom to get some cut debris out of the bar. Most of the area will get covered in silicone, so no reason to be **** about it.
Push black 100% silicone (caulk tube or automotive version is fine) into the cut opening. Push it in until it is the same distance as the other end. You will end up covering one of the leds with silicone. This is ok.
Carefully cut apart the end piece you removed. There is a rubber/silicone seal embedded in the blasck silicone. Carefully remove it and insert it into the cut piece that has the fresh silicone in it. It will center the actual LED strip and povide extra protection from the lements.
I've converted dozens of them.
2004 Ford Ranger Sonic Blue 4dr 4x4 4.0 Manual