- Ballasts (1-4 lamp) shall operate as a Parallel Circuit, allowing remaining lamp(s) to maintain full light output if one or more lamps fail (except T12 High Output).
- Ballasts shall operate from 50/60 Hz input source of 120, 277, and 347 Volts, and sustained variations of ± 10% (Voltage & Frequency) with no damage to the ballasts.
- Ballasts shall be a high frequency electronic type, and operate lamps at a frequency above 20 kHz.
- Lamp Current Crest Factor (ratio of peak to RMS current) shall be 1.7 or less in accordance with lamp manufacturer recommendation and ANSI C82.11-1993.
- Ballasts shall tolerate operation in ambient temperatures up to 105°F (40°C) without damage.
- Ballasts shall comply with FCC Part 18 Non-Consumer Equipment for EMI (power line conducted) and RFI (Radiated).
- Ballasts shall provide transient immunity as recommended by ANSI C62.41-1991, Location A2.
- Ballasts shall operate lamps with no visible flicker (<3% flicker index).
- Ballasts shall tolerate sustained open circuit and short circuit output conditions without damage.
- Ballasts shall be Underwriters Laboratory (UL 935) listed, Class P, Type 1 Outdoor, and CSA certified where applicable.
- Ballast shall have a Ballast Factor greater than .85 per ANSI C82.11-1993.
- Ballast Factor for Low Power (L) models shall be greater than .77.
- Input current Total Harmonic Distortion shall not exceed 10% for the primary lamp.
- Ballasts shall have a Power Factor greater than .98 for primary lamp.
- The ballasts shall not have any PCB’s.
- The manufacturer shall provide written warranty against defects in material or workmanship, including replacement, for five years from date of manufacture.
- Manufacturer shall have been manufacturing electronic ballasts for at least fifteen years.
- Ballast shall be manufactured in an ISO 9002 Certified Facility
- Ballasts shall provide instant starting sequence consistent with ANSI standard C82.11-1993.
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