Sylvania 49970-4 3-Lamp Instant Start Ballast

Sylvania 49970-4 is a 3-lamp Quicktronic electronic ballast designed to power three 32-watt T8 lamps from a universal input of 120–277 VAC. As part of the Sylvania Quicktronic family, it provides instant-start operation and a parallel circuit configuration suitable for fixtures that require three 32W T8 lamps. The unit delivers a ballast factor of approximately 0.88 to maintain consistent light output across its operating range. It is UL Listed and CSA Certified for indoor use, with a maximum case temperature specification up to 75°C, reflecting its suitability for standard commercial environments. The 49970-4 arrangement targets fixtures configured for three F32T8 lamps, commonly found in offices, schools, and retail spaces where reliable, energy-efficient fluorescent lighting is essential.