Sylvania SM2E40STP Electronic Fluorescent Lamp Ballast

The Sylvania SM2E40STP is a two-lamp slimline ballast designed to drive two F48T12 fluorescent lamps from a standard 120V, 60 Hz supply. This model is part of the Advance line and is a magnetic ballast; the STP suffix indicates thermally protected construction for safer operation in fixtures that may experience elevated temperatures. In practice, it powers two 4-foot slimline T12 lamps in fixtures built for Slimline ballasts, providing reliable light output in commercial spaces that rely on a compact, low-profile lighting layout. Common applications include hallways, offices, classrooms, and utility areas that use two-lamp T12 Slimline configurations. The ballast is compatible with 2-lamp F48T12 Slimline installations at 120V/60 Hz and should be installed in fixtures rated for Slimline magnetic ballasts of this type, with adherence to all safety and wiring guidelines.