WorkHorse, Electronic, Fluorescent Ballast, Ballast Start Type Instant, Input Voltage 277V AC, Number of Bulbs Supported 1, 2, Max. Bulb Watts 13 W, 14 W, 15 W, 17 W, 18 W, 19 W, 20 W, 24 W, 25 W, 28 W, 30 W, 32 W, 42 W, Ballast Bulb Type DBX, T12,...