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From: dms@fluke.UUCP (Dave Sherman)
Newsgroups: net.consumers
Subject: Re: Bulb Life/Local Power
Message-ID: <1319@vax3.fluke.UUCP>
Date: Mon, 4-Feb-85 12:20:13 EST
Article-I.D.: vax3.1319
Posted: Mon Feb  4 12:20:13 1985
Date-Received: Thu, 7-Feb-85 03:13:48 EST
References: <327@vax2.fluke.UUCP>
Reply-To: dms@fluke.UUCP (Dave Sherman)
Organization: John Fluke Mfg. Co., Inc., Everett, WA
Lines: 11

In this discussion of bulb life vs. voltage vs. cost vs. efficiency,
etc.,  I haven't seen any mention of probably the longest life bulbs
you can get,  Traffic Signal bulbs.  I get used Westinghouse 67 Watt
bulbs rated 8000 hrs at 130 V from a friend who gets them from the
Seattle Engineering department.  They replace the bulbs after 5000 hours
whether they are burned out or not.  I've not had one of these burn out
on me yet even though they are already well used.  They are also
mechanically rugged, and good for trouble-lites.  The only problem is
that they are not very bright (== not efficient).

			--- David