Incandescent Lampholder,porcelain, 4KV Pulse Rated, Mogul Base,1500W-600V, Keyless, Glazed White, With-Lamp Grip Screw Shell, With-Nickel Plated Bronze Center Contact Stamped UL&CSA, Stainless Steel Coil Spring Under Center Contact, Two 12 Inch Black And White Leads,