Plug In Compact Fluorescent (CFL) Ballasts where Number of Lamps is 1, Input Volts is 120V, Lamps by Wattage is 1 X 10W - 19W, Length is 5" - under 10", Max Current is 0.30 - 0.59 Amps, Max Load is 50 - 74W, Start Type is Instant, and Ballast Lamp Type is T12