Versatile Power for Fluorescent Fixtures

The Fulham WH3-277-L WorkHorse Electronic Ballast is a high-performance solution engineered for demanding commercial and industrial fluorescent lighting applications. Designed for 277-volt systems, this ballast delivers high power factor efficiency and versatile lamp compatibility, operating a wide range of fluorescent lamp types including T5HO, T8, and compact fluorescent lamps (CFLs).

Power and Flexibility

Engineered with Fulham’s solid-state electronic design, the WH3-277-L offers unmatched versatility, capable of running:

• (1) F54T5HO

• (1–2) F32T8

• (2) F24T5HO

• (1) F39T5HO

• (2) F17T8

• Compact fluorescent equivalents like CFQ26W

This broad compatibility makes it the ideal ballast for fixture retrofits, upgrades, or maintenance, reducing the need to stock multiple ballast models.

Compact and Durable Design

Measuring just 6.5" in length, 1.15" in width, and 1" in height, this WorkHorse ballast is compact enough to fit into tight fixture housings while still providing robust performance. Its solid-state construction ensures long-lasting durability, even in high-demand lighting environments such as retail, office, education, or industrial facilities.

Efficiency You Can Count On

With its high power factor design, the WH3-277-L ensures efficient energy usage and reduced operating costs over time. Its quick-start capability and quiet operation deliver reliable illumination without flicker, hum, or delay, creating consistent performance across all compatible lamp types.

Easy Integration

The Fulham WorkHorse series is engineered for hassle-free installation, with straightforward wiring and broad fixture compatibility. Its versatile lamp support allows facilities to standardize on one ballast type for multiple applications, reducing maintenance complexity and lowering inventory needs.

Built to Last

Backed by Fulham’s reputation for quality, the WH3-277-L is manufactured with premium electronic components that extend ballast life and ensure long-term reliability. This ballast offers a dependable solution for maintaining consistent light output while minimizing downtime and replacement costs.

Guardian of Efficiency

For facilities managers and lighting professionals, the WH3-277-L ballast provides peace of mind with its combination of efficiency, lamp flexibility, and durable construction. Whether used in linear fluorescent fixtures, compact systems, or retrofit applications, this ballast stands as a cornerstone of reliable lighting performance.

WorkHorse Guarantee

As part of the Fulham WorkHorse family, the WH3-277-L is backed by Fulham’s commitment to high-quality, innovative lighting solutions. This ballast ensures a balance of energy efficiency, lamp versatility, and long-term performance—hallmarks of the WorkHorse name.