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    • Posts Tagged ‘ballast BEF’

    Ballast Efficacy Factor (BEF)

    Saturday, February 7th, 2009

    Ballast Factor is measured by a certain bulb ballast to produce light from the bulbs it operates. BF is determined by dividing the lumen output of the bulb ballast combination by the total lumen output of the same light bulbs on a reference ballast. Ballast Factor is a whole number that is divided by the [...]

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    Category A - B | Tags: Tags: ballast BEF, Ballast Efficacy Factor, Ballast Factor, BEF, BF,

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