Keystone Technologies 120/277-Volt Electronic Ballast for 59-Watt Lamps

Features Ballast BLE meets 2014 DOE Energy Conservation Standards Sound Rated: A Maximum Case Temperature: 167 degree F, 75 degree C Maximum Ambient Temperature: 131 degree F, 55 degree C Meets FCC Part 18 (Class A) Non-Consumer Limits Meets ANSI Standard C82.11-2002 and C62.41-2002 Output Voltage: 1000-Volt Voltage to Ground: 600-Volt UL, cUL Listed Class P, Type 1 Outdoor Type HL Specifications Starting Method: Instant Start Lamp Connection: Parallel Input Voltage: 120-277 VAC +/- 10% Input Frequency: 50/60Hz Power Factor: High.|Maximum case temperature: 167 degree F, 75 degree C|UL, cUL Listed class P, type 1 outdoor|Starting method: instant start|Input voltage: 120-277 VAC +/- 10%