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From: ron@brl-tgr.ARPA (Ron Natalie )
Newsgroups: net.consumers
Subject: Re: Bulb Life/Local Power
Message-ID: <8202@brl-tgr.ARPA>
Date: Sun, 10-Feb-85 18:36:43 EST
Article-I.D.: brl-tgr.8202
Posted: Sun Feb 10 18:36:43 1985
Date-Received: Tue, 12-Feb-85 05:56:21 EST
References: <327@vax2.fluke.UUCP> <1319@vax3.fluke.UUCP>
Organization: Ballistic Research Lab
Lines: 7

Then there is always the principle of pre-heat current.  That's where
you keep a small flow of current through the bulb even when off to keep
the filament from cooling down two much.  The advantage is only realized
in lamps that are turned on and off a lot.  They filaments last longer
and the bulbs come up to full brightness faster.

-Ron