The Baja Designs RTL-M 6" Light Bar (MPN 100601) is the compact, plate-light member of the brand's RTL rear tail light family, built for rigs where bumper, tailgate, or spare-tire space is tight. Five red LEDs handle running and brake duty, a pair of central white LEDs with flood reflectors covers cargo and camp-area work, and a downward-facing white LED lights the license plate. The manufacturer also specifies a built-in overvoltage protection circuit, stainless steel hardware, and a MoistureBlock seal rated waterproof, rain proof, and submersible. Compared with a stock taillight on a Jeep, ATV, or side-by-side, this bar adds a highly visible third brake light for trail and race use. Backing comes from the manufacturer's limited lifetime warranty and 30-day satisfaction guarantee, plus a rated LED life of 49,930 hours.
This is a universal-fit part, so it mounts to almost any flat rear surface, using a track system that lets you mount it off the back or the bottom of the housing with ¼"-20 hardware. Because the bar ships without a wiring harness, plan on the 640127 Automotive RTL Harness for a vehicle wiring setup, or the 640605 RTL-M License Plate Harness for a plate-only setup. Owners on user forums have built plug-and-play trailer-style installs by tapping the reverse, brake, and running circuits and soldering a 5-way plug to the bar's leads. Searchers looking for an RTL-M 6 inch LED brake light bar for a Jeep JK, a 6 inch rear tail light for an ATV or UTV, or a 100601 plate light harness setup will find this listing's wiring and mounting details directly relevant.
No. The manufacturer states the bar ships without a harness and lists the 640127 Automotive RTL Harness or the 640605 RTL-M License Plate Harness as the correct match, depending on your setup.
The manufacturer's listings pair 100601 with the license plate illuminator, while 100602 is the version without the plate light. Both share the same five-LED tail and brake layout and the same 6-inch housing.
Owners on user forums have raised concern that the plate-light housing can collect water when the bar is inverted. Check drainage and sealing before choosing an inverted mount.
Mechanically, mounting is straightforward: you slide the two bolts into the housing track, fasten the bar with washers and nyloc nuts, and tighten until the bar cannot shift side to side. The wiring takes more time. Per the manufacturer's harness instructions, disconnect the battery ground first, then route the four-wire lead so that black is ground, yellow is brake, blue is reverse, and red is running. Those instructions call for a 10mm or ½" socket for the battery terminals and a ¾" drill bit for the reverse switch hole, and recommend mounting the relay away from heat and moving parts. The manufacturer's RTL wiring notes add two gotchas: the yellow brake circuit only works while the red running circuit has power, and the white light is best run through a switch. Owners on user forums also recommend electrical tape, wire loom, and zip ties to keep the leads clear of moving parts.
