Aluminum & Steel, Vapor Tight, Non Rusting Housing Fixture, Glass Screw On Jar, Suitable For Damp Locations, Prevents Moisture & Dust From Coming Into Contact With Light Bulbs, For Barns, Horse Stalls, Chicken Roosts, Basements, Garages, Factories, Etc., Uses 100W Maximum A-19 Standard Base Light Bulb, Uses Universal Mounting Bracket & Mounting Screws, 3 Year Warranty, UL Approved.