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Old 05-22-2011, 02:38 AM
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Do you have a true magnestic ballast or are you using a select-a-watt electronic ballast? Mine are magnetic, I've got a dual ballast from Sunlight Supply and a single from Hamilton. I may actually be higher than what I said before. Just now I shut off everything on the powerbar except the hamilton and it was 3.3 amps for that light alone. If watts = amps x volts I guess thats 396W unless I understand that wrong.
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