T12 fluorescent tubes are not made anymore because of poor energy efficiency. While these lamps are still in stock in some stores, replacing the ballast with a more efficient T8 electronic ballast could be a better choice.
The label on the ballast shows two important labels.
Ballast Wiring Diagram
Lamp Compatibility Table
Fluorescent lamps use a ballast which transforms line voltage to a voltage to start up and operate the lamp(s). Newer fluorescent ballasts are usually rated for both 120 volts and 277 volts. Some are rated for only 120 volts, others for only 277 volts (used in commercial environments).
CFLs for the home have a built-
There are four basic types of fluorescent ballasts:
T8 lamps with a newer electronic ballast use about 20 -
Fluorescent tubes have two common shapes, straight and u-
Up to 4 lamps
Fluorescent 32 watts
Compatible Lamp types for this ballast
(4) F32T8 -
(4) F25T8 -
(4) F17T8 -
Light fixtures with ballasts sometimes have labels that show the required type of lamp and ballast ( F32T8).
There are three requirements when matching a ballast to a lamp. In the example above, lamp type F32T8 has the following three requirements:
1. Fluorescent lamp
2. 32 watts