Warehouse-Lighting.com’s Fulham Pony rapid-start
120V electronic ballast for 1 x F21T5 or F28T5 applications comes with a
two-year warranty and fast shipping. It usually ships within 48 hours of your order.
This ballast has a power factor greater than 0.5 and a ballast factor of 1.006.
The minimum start temperature is 32 degrees Fahrenheit.