What is the Maximum Overall Length?

A measure of the luminous flux or quantity of light emitted by a source. For example, a dinner candle provides about 12 lumens. A 60-watt Soft White incandescent lamp provides about 840 lumens.

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An Ignitor is an electronic device providing a high voltage pulse to initiate an electrical discharge. Typically, the ignitor is paired with or is a part of the ballast.

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What are the measurements of the oversized wall plates?   Oversized wallplates are 0.75 inches higher and wider than standard wallplates. They are used to conceal greater wall irregularities than those hidden by the extra coverage provided by Midway wallplates. All 1-Gang Oversized wallplates are 5.25" H x 3.5" W. Add 1.8125" for each additional gang.

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The proper term, High Efficiency (Energy Saving) Electromagnetic Ballast, is a ballast with a core & coils, designed to minimize ballast losses compared to the "standard" ballast.

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What is the difference between line voltage and low voltage? Line voltage in the United States is 120 volts. It is the voltage that is supplied to your home or office. Low voltage is less than the supplied voltage. Some lamps, like MR16 lamps, run on low voltage. Getting low voltage to lamps requires that the supplied electricity (at 120 V) passes through a transformer to reduce it prior to operating the lamp.

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