EL259-120/277HF High-Frequency Electronic Ballast – Universal Voltage, Parallel Start, Aluminum Case

Power up your lighting systems with precision and reliability using the EL259-120/277HF Electronic Ballast—a commercial-grade, high-frequency ballast designed to operate a wide range of linear fluorescent lamps including F40T8, F58T8, F70T8, F72T8, and F96T8 models. Whether in retrofits or new installations, this ballast ensures optimal lamp performance and longevity in demanding applications.

Built with versatility in mind, the ballast supports both 120V and 277V input, making it compatible with a broad spectrum of electrical systems in commercial and industrial environments. The ballast’s solid aluminum housing enhances durability and heat dissipation, while its compact size (9.45" L x 1.7" W x 1.25" H) allows for effortless integration into standard troffers, strip lights, and vapor-tight fixtures.

🔧 Technical Features:

• Lamp Compatibility: Operates 1 or 2 lamps, including F40T8, F58T8, F70T8, F72T8, F96T8 fluorescent tubes

• Start Method: Reliable parallel start—lamp remains functional even if the second lamp fails

• Input Voltage Range: 120V–277V, 50/60Hz

• Wire Leads: All 18AWG solid wire leads, each extending 2438mm (96 inches) for flexible installation

• Minimum Start Temperature: 32°F (0°C) – suitable for standard environments

• Total Harmonic Distortion (THD): ≤ 10% for enhanced power quality

• Power Factor: High efficiency at .99, minimizing energy waste

• Mounting Distance to Lamp (MBTL): Up to 18 feet, ensuring flexibility in layout design

• Safety Rated: UL Listed for dry and damp locations

🏗 Construction & Durability:

• Housing Material: Rugged aluminum for corrosion resistance and heat dissipation

• Finish: Brushed aluminum

• Dimensions:

  • Length: 9.45" (240.03mm)

  • Width: 1.7" (43.18mm)

  • Height: 1.25" (31.75mm)

📦 Packaging:

• Package Quantity: 1 per unit

• Case Quantity: 10 units

The EL259-120/277HF is the go-to solution for facilities managers, lighting contractors, and engineers seeking dependable ballast performance in office buildings, schools, retail spaces, and industrial settings. Its universal voltage compatibility, compact design, and extended lead wires make it a perfect match for your next lighting upgrade.