4" round back-up light for recess mount. Incandescent lamp. Clear polycarbonate lens with white polycarbonate housing. Sonically sealed waterproof . Uses a PL-3, 2-pin connection. Grommet mount.(grommet not included). Optronics BU45CB. Voltage 12V. Amp draw 2.182. Will replace Grote 62421. Other cross reference numbers, Uni-Bond SE4000W,Truck-Lite 40204-3. Replacement lighting for your bus or truck. We sell more than bus, truck, and trailer lighting. Please browse our store for all of your shuttle bus parts needs.