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Tazz Tazz is offline
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Default Fluorescent amperage

15a x 80% = 12 a.
Different ballasts will have a small margin in amp draw per ballast.

Does it not say on the ballast amps?



How much current is drained by a 2x 40 watt T12 magnetic ballasted
shop light trough at peak current draw? I assume this is at startup,
while trying to saturate the transformer and ignite the tubes. How
much
is drawn once the lights are running?

Short version: How many such fixtures (too cheap to replace
the old ones) can be run on a 15 amp circuit?