The Fulham Pony NPY-120-213-CFL electronic
ballast operates two 7/9/11 watt twin tube, 13-watt quad tube or 13W triple
tube lamps at 120 input volts. Available at 50 per case from
Warehouse-Lighting.com, Fulham’s rapid-start electronic ballasts for compact
fluorescent lamps, or CFLs, have an increased light output ballast factor of
0.95 to 1.081. They carry a three-year OEM warranty. Enjoy flicker-free
operation from this light-weight and energy-efficient ballast.