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Date:	Mon, 21 Jan 2002 23:02:22 PST7
From:	"Benedict G. Archer" <bgarcher@gte.net >
Reply-To:	scoug-help@scoug.com
To:	scoug-help@scoug.com
Subject:	SCOUG-Help: Monitor Glitch

Content Type: text/plain

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Peter Skye wrote:
>
> I've seen arguments for 35 years (I'm 54) on what you should turn off
> and what you should leave on. There's a "thermal shock" which occurs
> when something is turned on and expands quickly when it heats up --
> that's why a lot of light bulbs fail the moment you turn the wall switch
>
True for some things perhaps, but not light bulbs. Incandescent light
bulb life is a function of time on and operating temperature. Lifetime
measured in time on is the same whether on continuously or cycled on/off
at ~1 Hz or any slower rate. There's no down side to turning tungsten
filament bulbs off to save energy.

Ben A.

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