The Multi-Lite(TM) is designed for use in engine rooms, storage compartments and other enclosed spaces. Corrosion resistant and weather tight. The heavy glass fresnel lens amplifies light and is O-ring sealed. Utilizes a standard medium screw base bulb. Polycarbonate base resists salt damage. Wiring and bulb are not included and should be matched with your electrical system. Description w/o Switch Size 4" x 7"