This version of the IML Utility Lights is a versatile surface-mounted fixxture designed for harsh marine environments. Perfect for illumination of deck holds, utility rooms, and engine spaces, its compact design fits in confined spaces on ceilings or on bulkheads. Made of high temp PBS, Polypropylene, and other marine-grade components, this light fixture is designed for years of maintenance-free service. Accepts Edison-type medium screw-base bulbs (40W max) for both low voltage or line voltage.