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Old 10-20-2004, 12:25 PM   #1
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Ballasts - what are they?

What are ballasts? I know they have something to do with lighting, but I haven't found a clear description to what they do.

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Old 10-20-2004, 12:42 PM   #2
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they are required to make any type of flourescent or MH light fire. There are different ones for different types of lights.

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Old 10-20-2004, 03:15 PM   #3
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Basicly they are used to up the current from the 120VAC thats in your walls to the proper levels for the light to operate. Different types of florecent require different ballasts because they operate at different Hz levels for example. In addition MH bulbs require the ballast be matched to the bulb's wattage. For example a 175W MH bulb needs a 175W MH ballast to fire it. This is a very basic definition but I think you will get the idea.
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