RBM wrote:
"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



I already wired it up, is why I asked, and it's a PITA to get back to
the wiring after you put all the tubes in. you pretty much have to take
all the tubes out, then open up the wiring cover, then reassembly is the
reverse... I am going to have to do this again in a couple weeks
anyway, I just temporarily wired up this one troffer so I can have light
while demo'ing the old crap. That sucker is bright with all four tubes
lit! my eyes hurt... I think I'm going to wire up two of them, with
two switches and 14/3 so that one switch will turn on a pair of tubes in
each fixture, that way I can have normal light, and bright light if I
need it to do delicate work or something.

nate

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