About Replacing a Ballast
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Electronic Ballasts for Tubular Fluorescent Light Bulbs
In addition to being more energy-efficient than magnetic ballasts, these electronic ballasts are lighter and quieter. Ballasts that can operate multiple bulbs may have more wires than you need. Cover unused wires with a wire nut.
Programmed-start ballasts provide the longest bulb life, but they take longer than instant- and rapid-start ballasts to turn on. They are often used with motion-sensing light controls.
| For Bulb Trade No. | For No. of Bulbs | For Bulb Wattage | Voltage | No. of Wire Leads | Light Setting | Lg. | Wd. | Dp. | Min. Start Temp., °F | Specifications Met | Each | |
Programmed Start | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Tubular T5 Bulbs | ||||||||||||
| F14T5, F21T5, F28T5, F35T5 | 1, 2 | 14W, 21W, 28W, 35W | 120V AC/277V AC | 8 | Not Dimmable | 9 1/2" | 1 3/8" | 1" | 0° | UL Listed | 0000000 | 000000 |
For Tubular T5/HO Bulbs | ||||||||||||
| F24T5/HO, F39T5/HO, FP24/HO, FP39/HO | 1, 2 | 24W, 39W | 120V AC/120V DC/277V AC/277V DC | 8 | Not Dimmable | 14 1/4" | 1 1/4" | 7/8" | -20° | UL Listed | 0000000 | 00000 |
| F54T5/HO | 3, 4 | 54W | 120V AC/277V AC | 15 | Not Dimmable | 16 3/4" | 1 3/4" | 1 1/4" | -20° | UL Listed | 0000000 | 00000 |
| F54T5/HO, FP54/HO | 1, 2 | 54W | 120V AC/120V DC/277V AC/277V DC | 8 | Not Dimmable | 16 3/4" | 1 1/4" | 1" | -20° | UL Listed | 00000000 | 00000 |