Peterson Manufacturing 4in. Round Sealed Back-Up Light Kit - 415K

Features extra wide, spin-welded, tongue-and-groove lens lip and waterproof seal
High performance, copper alloy conductors eliminate the possibility of wire failure
State-of-the-art bulb design features three supports for the minor filament and two supports for the major filament providing long bulb life
Wedge-base socket prevents premature bulb failure
Kit includes light, grommet (# PM42618) and plug (# PM43149)