>I've got two twin tube 8 foot florescent lights in my wife's mostly unheated
>bird room (attached two car garage). These lights are on all day every day.
>Even so they seem to go through an alarming number of bulbs.
>
>I have replaced the ballasts with new standard ones but that didn't seem to
>help. What other options do I have here? The lights must be on during the day
>for the birds. What about replacing the ballasts again with the new electronic
>style? Would bulbs last longer? I'm sure the cold doesn't help matters either.
>Do the electronic ballasts handle the cold better?
>
>How about going to two, 4 tube, 4 foot fixtures? Are 4 foot bulbs that much
>cheaper? What about another type of lighting besides fluorescents? It has got
>to be bright though.
Make sure that your ballasts match the tubes you're using.
Mismatches between them will cause short tube life.
There are cold service tubes -- intended for use in things like walk
in freezers and supermarket cold cases. They've got thicker glass,
and, I think, a different gas in them.
Four foot tubes last somewhat longer than eight foot ones in normal service.
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