GE 71730 GE432MAX-N-DIY 120/277-volt UltraMax Electronic Fluorescent T8 Multi-volt Instant Start Ballast, 4 or 3 F32T8 lamps. Multi-volt Instant Start T8 Ballast will accept up to 4 or 3 F32T8 lamps. Accommodates multi-voltages from 120 to 277-volts, extra versatile for your unique projects. Anti-striation circuitry helps to eliminate and prevent the spiraling effect from lights. Save on energy with the ultra efficient instant start ballast, more than 90-Percent efficiency. Mounting dimensions: 9-Inch L x 1-Inch W, Mounting slot set 0.3-Inch apart. UltraMax ballasts have a lamp-friendly low-lamp-current crest factor and virtually "read" and adapt to incoming voltage. Parallel lamp operation keeps the unit maintenance easier to manage, if one lamp fails others will stay on. Unit provides anti-striation control, auto-restart functions, and is thermally protected against damage. 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. Ballast has a cold minimum starting temperature of -20 Degree Fahrenheit. Runs quietly with most 120-volt applications, less than 10-Percent Total Harmonic Distortion (THD). less than 20-Percent with other approved lamps. UL Type CC rating provides protection against arcing in electrical components. Suitable for high temperature applications, UL 55C ambient rating. UL Type 1 Outdoor, UL Type HL, UL Type CC, and UL Class P listed, ANSI standard C62.41-1991, ANSI standard C82.11-Cons 2002, and ROHS Compliant - Industry standards for safety and performance.