A lighting ballast is the heart of a fluorescent and high powered light bulb lighting system circuit. Ballast are the component that helps ignite the light bulb it is connected to. The ballast also manages current flow to the bulb to maintain a constant light output for us to use.

This Ballast operates with 120 -and up to 277  Input Voltage. Only use compatible type bulbs 14W F14-T5 or 21W F21-T5 or 28W F28-T5 or 35W F35-T5 Fluorescent type Bulbs.
The ballast is also ok to use with LED Retrofit bulbs that require or allow for a ballast to be used to power the bulb.
Measurements 9.38" Long x 3.00" Width x 2.00" Height.
This ballast is dimmable.

Input and output wires leads are color coded. The wiring instruction can be found on the front side of the ballast case. The instructions include wiring diagram. 

Always make sure power is off when working with electrical parts and fixtures.