The Leviton 466 pedestal-style plunger end lampholder is for use with T8 single pin and T12 slimline fluorescent tubes. It is rated for a maximum of 660 watts and 1000 volts. This single pin socket is 2-5/16 inches in height and 1-7/16 inches in width. It is CSA certified and UL listed. A matching stationary end lampholder is also available but not included.