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Total 9 documents matching your query.

1. Light bulbs and heat (score: 1): Author: Simon.Matthews@tiuk.ti.com; Date: Mon, 13 Jun 94 09:18:51 BST; At home I pulled the old rear bulbs, donned rubber gloves and installed the new halogen. When I bought them the clerk had asked me if I had glass or plastic lenses. "Glass", I had answered confidentl; /html/british-cars/1994-06/msg00445.html (8,449 bytes)
2. Re: Light bulbs and heat (score: 1): Author: Roland Dudley <cobra@cdc.hp.com>; Date: Mon, 13 Jun 94 8:36:48 PDT; Simon, As a EE you're argument seems reasonable to me, but I never claimed that the bulbs were rated at the same wattage and it's the bulb's manufacturer, not me, that claims they get hotter. Then t; /html/british-cars/1994-06/msg00460.html (7,762 bytes)
3. Re: Light bulbs and heat (score: 1): Author: Simon.Matthews@tiuk.ti.com; Date: Mon, 13 Jun 94 16:45:22 BST; We have to differentiate between the total heat emitted and that absorbed by the envelope (quartz or glass). I thought that the discussion was about heat in the light unit, not temperature of the bu; /html/british-cars/1994-06/msg00463.html (8,992 bytes)
4. Re: Light bulbs and heat (score: 1): Author: Roland Dudley <cobra@cdc.hp.com>; Date: Mon, 13 Jun 94 10:27:18 PDT; I believe the original discussion resulted because of the concern that additional external heat could cause damage to plastic lenses. This also occurred to me. The bulbs are smaller so a lot more he; /html/british-cars/1994-06/msg00470.html (8,532 bytes)
5. Re: Light bulbs and heat (score: 1): Author: lupienj@wal.hp.com (John Lupien); Date: Mon, 13 Jun 94 16:25:19 EDT; Over-simple, really. You appear to have left half of the non-visible spectrum out of your model. Perhaps there is less UV emitted, more IR, and more visible? Then you'd get more heat, more light, an; /html/british-cars/1994-06/msg00477.html (7,746 bytes)
6. Re: Light Bulbs and Heat (score: 1): Author: Simon.Matthews@tiuk.ti.com; Date: Tue, 14 Jun 94 12:27:32 BST; In response to John Lupien: My original comments: I think that the assumption that light bulbs emit a significant amount of UV is rather doubtful. Since less than 10% of the energy is emitted as visi; /html/british-cars/1994-06/msg00490.html (8,566 bytes)
7. Re: Light Bulbs and Heat (score: 1): Author: lupienj@wal.hp.com (John Lupien); Date: Tue, 14 Jun 94 09:38:30 EDT; I have no problem with your expanded analysis, it was the original message indicating that if there is more visible light, there should be less heat for the same power input. Thanks for elaborating; /html/british-cars/1994-06/msg00496.html (8,203 bytes)
8. Light bulbs and heat (score: 1): Author: montnaro@ausable.crd.ge.com (Skip Montanaro); Date: Tue, 14 Jun 94 14:30:10 EDT; I don't like to be pickey about this, but there should be less heat, not more. If the bulbs are rated at the same wattage (ie. energy input) and a greater proportion of that energy is emitted as visi; /html/british-cars/1994-06/msg00510.html (8,714 bytes)
9. Re: Light bulbs and heat (score: 1): Author: Roland Dudley <cobra@cdc.hp.com>; Date: Tue, 14 Jun 94 11:55:39 PDT; They are MOST DEFINITELY brighter. I couldn't tell that much difference in bright sunlight but at night, wow! If I think of it I'll look up the wattage tonight. I have no idea what the power rating; /html/british-cars/1994-06/msg00512.html (7,672 bytes)

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