Advance Mark III Fluorescent Light Ballast

This is an Advance Mark III Energy Saver rapid-start magnetic fluorescent ballast (Model R-2S40-1-TP). Designed for 120V, 60Hz applications, it operates two F40T12 fluorescent lamps (40W, 34W, or 32W). It features color-coded wire leads secured with a zip tie, built-in thermal protection, and a Class P rating for commercial or shop light fixtures.