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  • Brand: Keystone
  • Lamp Type: F54T5/HO, FC12T5/HO, FT55W/2G11, FT50W/2G11 or FT36W/2G11
  • Number Of Lamps Controlled: 1 or 2
  • Voltage: 120-277
  • Starting Method: Program
  • Power Factor: High
  • Ballast Factor: Normal
  • Min Start Temp: -0 Degree F, -18 Degree C
  • Warranty: 5 Years
5 Year Warranty UL Listed



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The Keystone electronic ballast for one or two lamps from is an efficient ballast that will give you reliability and durability. Its manufacturer, Keystone, has been in the lighting business in Pennsylvania since 1945 and backs up this ballast with a five-year warranty. Keystone burns in all its ballasts at the factory to help ensure long life, reliability and performance.

Because it is program start, this 120-277V ballast will also take stress and strain off the lamps it controls, helping to add to their longevity.

This ballast works with many T5 lamps, including the F54T5/HO, the FC12T5/HO and the FT55W/2G11. It features a high power factor and a normal ballast factor. Minimum start temperature is 0 degrees Fahrenheit.

Available at discount pricing from, this ballast typically ships direct to your door within three to five business days of your order. If you have any questions about making this ballast work for your project, just ask. Our expert staff will provide you reliable, economical solutions.


  • Length: 9.57”
  • Width: 1.35”
  • Height: 1.06”
  • Mounting: 8.96”
  • Weight: 1.10 lbs

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