The M85437R-WL is a 5.5″ Round, Flange Mount, Combination Stop/Turn/Tail (STT), Reverse Light, and LED Work Light. Maxxima’s patented LED Flange contains 9 White LED’s that operate in back-up light or work light mode. In addition, our patented Lightning Optics provide superior off-axis visibility for improved driver safety. 5 discrete wires allow the Work Light wire to be connect to a dedicated switch (user supplied) to activate the Work Light independently of the STT & reverse functions. M85437R-WL is thin-profile at 0.5″ depth and is backed by a 5-year warranty.Dual Function LED Flange: Reverse Light & Work Light310 Lumen Back-Up / 1,000 Lumen Work LightPatented Hybrid Series with Lightning Optics, US Patent No 8,009,364 8,052,313 8,717,679 B2Mounting Screws and Screw Caps IncludedNeoprene Gasket Attached5 Blunt Cut WiresPolycarbonate Lens & HousingDOT FMVSS108 / CMVSS108 Compliant5 Year Warranty