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Date: Fri, 01 Feb 2002 17:16:08 +0000
From: Johannes H Andersen <johsnopsamanytime.co.uk>
Subject: Re: 2000 9-5 Headlight swap for HID's question


davehinznopsamcop.net wrote: > > Daryl Mark Krzewinski <nobodynopsamtos.net> pressed random keys until the following was produced: > > > Just a note Guy: 6000 degrees K is about 10,340 degrees Fahrenheit. I think > > your Saab would be almost instantly vaporized, not to mention a good portion > > of the surrounding neighborhood. The 6000K must refer to something else. > > Well, you may be confusing temperature with heat. They're related, but > you can have something at a high temerature that doesn't have alot of > heat. So, the filament may be at a really, really high temperature, > but there's not very much of it. > Spot on Dave. A large portion of the heat is actually the light output. The high temperature filament is well insulated by the vacuum or thin gas in the bulb. It does get hot though, but since the heat is dispersed, the outside temperature is reduced. Johannes

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