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Industrial and commercial lighting at wholesale prices

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  • Brand: Keystone
  • Lamp Type: F35T5, F28T5 or F21T5
  • Number Of Lamps Controlled: 1
  • Voltage: 120
  • Starting Method: Rapid
  • Power Factor: Normal
  • Ballast Factor: Normal
  • Min Start Temp: -0 Degree F, -18 Degree C
  • Warranty: 3 Years
3 Year Warranty UL Listed



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Description stocks the Keystone electronic ballast for one-lamp applications with F35T5, F28T5 or F21T5 lamps. Available at competitive wholesale prices from, this quality electronic ballast becomes even more affordably when you buy in quantity and take advantage of our bulk discounts.

We can ship this product directly to your door, saving you the time and hassle of driving, and our trained, knowledgeable staff is always ready with advice to answer any questions you may have about this product and how it can fit into your plans.

Made by Keystone, a company founded in Pennsylvania by a World War II veteran 70 years ago, this efficient 120V electronic ballast has a normal power factor and a normal ballast factor. Minimum start temperature is 0 degrees Fahrenheit.

Keystone backs up this dependable and durable electronic ballast with a three-year warranty. This item usually ships in three to five business days.


  • Length: 9.00”
  • Width: 0.95”
  • Height: 0.95”
  • Mounting: 8.75”

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