Fluorescent Ballasts

Ballasts are electrical devices that convert line current into the proper voltage, amperage, and waveform to operate fluorescent lamps. Ballasts typically last from 40,000 to 100,000 hours and operate with an electrical efficiency of about 80 to 95 percent, consuming parasitic power of about one to a dozen watts.

The mix of ballasts in the market has been shifting steadily toward more efficient equipment over the past 10 years. High-efficiency electronic ballasts represent more than half of new ballast sales in the US, and that share will continue to grow rapidly as the 2005 efficiency standards continue to phase out the manufacture and use of magnetic ballasts in linear fluorescent lamp applications.

What Are the Options?
How to Make the Best Choice
What’s on the Horizon?
Who Are the Manufacturers?

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