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The LED Authority

Fulham RaceHorse Electronic Programmed Start Ballast 120V/277V T5HO

SKU: RHA-UNV-454-LT5 | Ordering Code: RHA-UNV-454-LT5  | UPC: 872180107790

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Product Highlights

  • Ignites up to four T5HO/4-Pin lamps
  • Clearance

Fulham Brand RaceHorse A4 Electronic T5HO fluorescent electronic ballast, 120/277 Volt. Ignites 2xF54T5HO, 2xFT36W, 2xFT55W, 3xF54T5HO, 3xFT36W, 3xFT55W, 4xF54T5HO, 4xFT36W, 4xFT55W

  • Programmed preheat start for extended lamp life in frequent switching applications
  • End of life protecton to safely remove power from the lamp as it nears end of life
  • Cold starting to ensure proper functionality even in low temperature applications (-18ºC)
  • Improved reliability due to precision control flicker-free operation
  • Auto-restart which eliminates the need to reset the power mains after lamp replacement
  • THD: <10%
  • High Power Factor: > 0.98
  • Connector Type: Leads
Full Specs



Input Volts


Number of Lamps


Ballast Type

Magnetic ballasts are a legacy technology and use inductance to transform the line voltage to the voltage required to "fire" or excite the gasses in a lamp. Electronic ballasts use a variety of starting methods, and are more efficient than magnetic ballasts in converting input power to the proper lamp power and operate fluorescent lamps at higher frequencies, resulting in an overall lamp-ballast system – increasing efficacy 15% to 20% over a magnetic equivalent.
Ballast Type

Length (in)

Also referred to as "Maximum Overall Length" (MOL). For light bulbs, it measures the length of a light bulb, from the top of the bulb to the bottom of the base or pins and is typically expressed in inches. For light fixtures and ballasts, it applies to the total horizontal length of the item.
Length (in)

Width (in)

For fixtures and ballasts, width is the measurement of the total horizontal distance from left to right of the product in inches.
Width (in)

Height (in)

For ballasts and fixtures, height is the measurement of total vertical distance from the top of the product to the bottom expressed in inches.
Height (in)

Power Factor


Total Harmonic Distortion (THD)

Total harmonic distortion, or THD, is the measure of how much a ballast can distort the waveform of that building’s power supply and interfere with other equipment. Electronic ballasts today are rated at less than 20 percent, 15 percent, or less than 10 percent THD. The magnetic ballast is rated in the 20 to 28 percent range. The lower the THD the better and more efficient the ballast, and the less likely it is to interfere with other electronic equipment.
Total Harmonic Distortion (THD)

Lamps by Wattage

2x36W, 2x54W, 2x55W, 3x36W, 3x54W, 3x55W, 4x36W, 4x54W, 4x55W


3 years

Ballast Lamp Type

The type of bulb the ballast can fire.
Ballast Lamp Type

Maximum Current (Amps)

The maximum amount of Amps that a ballast can hold.
Maximum Current (Amps)

Maximum Load (Watts)

The maximum power that a product can handle.
Maximum Load (Watts)

Start Type

For Ballasts, indicates the method the ballast uses to start its bulbs. HID ballasts can be Probe or Pulse start. Fluorescent ballasts can be Rapid, Instant or Programmed start. For HID and Fluorescent bulbs, indicates the start-type of ballast that the bulb will work with.
Start Type
Program Preheat
Customer Reviews
Q & A