"Nate Nagel" wrote in message
...
if you take two tubes out of a four tube fixture, is there any current
flowing through the unused ballast? (assume two ballasts, one for each
pair of tubes.) Any downside to doing so? I'd only like to leave this
like this for a week or so until I can wire up two switches.

thanks,

nate
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If the fixtures are 4/40 T12, there's two ballasts. Just leave one ballast
disconnected when you wire the fixture. If the fixtures are 4/32 T8, it's
usually one ballast. Just leave out however many lamps you don't want lit