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  • Brand: Keystone
  • Lamp Type: F32T8, F25T8, F17T8, F40T8 or PLL
  • 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 is designed for use with 1 or 2 T8 fluorescent lamps. The purpose of the ballast is to limit the current that is allowed to pass through the lamps at any given time so that they do not overheat and self-destruct. The simple device can control 1 or 2 lamps, as desired. All fluorescent lamps are sold separately. The Keystone ballast operates at a range of voltages from a low of 120 volts to a maximum of 277 volts. It features a pre-programmed start and can operate in temperatures as low as 0 degrees Fahrenheit. The device comes with a 5-year warranty for peace of mind. Keystone ballasts are UL rated and ship quickly from our warehouse.

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  • Length: 9.50”
  • Width: 1.38”
  • Height: 1.18”
  • Mounting: 8.90”
  • Weight: 1.17 lbs

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