Shower Dome 4 inch trim with Frosted glass and Satin Nickel, Chrome, or White trims is sealed and has a gasket for use in areas where occasional direct spray from water may occur. Full return with gasket to eliminate light leakage. One 50 watt, 2 volt MR16 type GU10 base halogen bulb is required, but not included. For use with RH04, NC04-B or IC04 Housings, sold separately. UL listed for wet locations. 5 inch width x 2.1 inch height.