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  • Brand: Keystone
  • Lamp Type: F39T5/HO, F24T5/HO, FC12T5, FC9T5, FT36W/2G11, FT24W/2G11, F40W/2G11 or (1)FC9T5+(1)FC12T5
  • 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
  • 5 Year Mfr. Warranty
5 Year Mfr. Warranty UL Listed



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The Keystone electronic ballast for one or two lamps from Warehouse-Lighting.com is a quality ballast that will work with many T5 lamps, including the F39T5/HO, the F24T5/HO and the FC12T5. Keystone, a Pennsylvania company that’s been in the lighting business for 70 years, backs up this electronic ballast with a five-year warranty.

This product will also work as an FC12T5 ballast, among others. As a program-start ballast, this reliable product will not only last a long time; it will also help increase the longevity of the lamps that it powers.

Weighing just 1.03 pounds, this 120-277V ballast has a high power factor and a minimum start temperature of 0 degrees Fahrenheit.

Warehouse-Lighting.com stocks this ballast at attractive wholesale prices that become even more affordable when you buy in quantity. Plus, we’ll ship your order directly to the door, saving you the time, expense and hassle of driving from store to store and searching for parking. If you have any questions about this Keystone ballast and how to put it to work for you, just ask our friendly, knowledgeable staff. We’re just a toll-free phone call, instant chat or email away.


  • Length: 9.45”
  • Width: 1.35”
  • Height: 1.06”
  • Mounting: 8.58”
  • Weight: 1.03 lbs

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