GE 96715 GE332-MVPS-N 120/277-volt Ultra Start Electronic Fluorescent T8 Programmed Rapid Start Ballast, 3 F32T8 lamps. Programmed Rapid Start T8 Ballast will accept up to 3 F32T8 lamps. Accommodates multi-voltages from 120 to 277-volts, extra versatile for your unique projects. Extends lamp life in frequently switched applications, more than 100,000 on/off cycles. Ultra-efficient programmed start ballasts with more than 90-Percent efficiency. Mounting dimensions: 8.9-Inch L x 1.1-Inch W, Mounting slot set 0.3-Inch apart. Ultra Start ballasts provide greater than 100,000 starts and have the equivalent energy savings of instant start ballasts. additionally offering a long lamp life similar to a programmed start ballast. Runs quietly with most 120-volt applications, less than 10-Percent Total Harmonic Distortion (THD). Anti-striation circuitry helps to eliminate and prevent the spiraling effect from lights. T8 ballast sound rating: Class A (20-24 decibels). Ballast factor rating of Normal .87 for full light output, ballast factor rating controls light output and wattages of each lamp, a lower BF will reduce light output and wattage of each lamp, meaning more lamps would be needed to achieve a certain foot-candle level in the same area. Parallel lamp operation keeps the unit maintenance easier to manage, if one lamp fails others will stay on. Unit features anti-striation control, thermal protection, and universal voltage. UL Type 1 Outdoor, UL Type HL, UL Class P, ANSI C62.41, NEMA Premium, ROHS Compliant - Industry standards for quality and safety.