Dimming Ballast Specifications for:

Continuous Dimming & Light Level Switching

  • Ballasts shall operate from 60 Hz input source of 120, 277 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 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.
  • 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, in the 100% light position.
  • 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 rapid starting sequence consistent with ANSI standard C82.11-1993.
  • Continuous Dimming:
    From 100% to 5% ( V5 Ballast)

  • Ballast 10-0 volt (DC) control leads shall have safety/protection circuitry to protect the ballast against improper wiring of line voltage (AC) to control leads (DC).
    - In the event of improper wiring, the ballast will operate with no harm to the ballast or user. The ballast will dim to a 30% light level.
  • All Lamps must remain on at low light levels (No Lamp Dropout)
  • Light Level Dimming:
    From 100% to 60% to 30% or 100% to 50% (S30/S50 Ballasts)

  • Ballast(s) must be operable with two standard wall switches or relays
    - Both Switches must be wired on same phase of circuit
  • Ballast(s) must be compatible with Power Line Carrier (PLC) Systems
  • Ballast must provide equal lamp current to each lamp at all settings