Sylvania T5 Fluorescent Ballast (QHE4x54T5HO/UNV PSN HT SCL DOE (52665)). When servicing a socketed fluorescent fixture, compare this model against the lamp schedule and supply before ordering. It is specified for 4 X F54T5HO; preserve the required lamp type and quantity when selecting the ballast. Its specified starting method is programmed start; compare it with the existing circuit rather than relying on the housing dimensions alone. Ballast factor 1 is one comparison point for retaining the intended lamp output in this fixture.
Check the installation supply against the 120-277V AC rating for this version before ordering. This version lists length 16.7 in., width 1.68 in., height 1.18 in. Those measurements help check physical fit at the ballast compartment. Follow the wiring diagram for this model when making the replacement connections.
| Brands | Sylvania |
|---|---|
| Product | Ballast |
| MPN ( Part No.) | QHE4x54T5HO/UNV PSN HT SCL DOE (52665) |
| Voltage | 120-277V AC |
| Ballast Factor | 1 |
| Lamps Operated | 4 X F54T5HO |
| Power Factor | 0.98 |
| Start Method | Programmed Start |
| Warranty | 2 Years |
| Length | 16.7 inch |
| Height | 1.18 inch |
| Width | 1.68 inch |