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Re: Using LM12 and electronic ballast controls
- To: ukha_d@xxxxxxx
- Subject: Re: Using LM12 and electronic ballast controls
- From: "David Buckley" <db@xxxxxxx>
- Date: Fri, 25 Apr 2003 11:05:05 -0000
- Mailing-list: list ukha_d@xxxxxxx; contact
ukha_d-owner@xxxxxxx
- Reply-to: ukha_d@xxxxxxx
--- In ukha_d@xxxxxxx, "Jon Payne" <jgpayne@b...> wrote:
> I don't know, but I'm guessing that an arc lamp is, due to it's
nature,
> either on or off, and cannot be dimmed.
Not quite; dimmable HMI does exist in products, especially for film
studio work, but not over a 0-100% range. Heres a fibre optic source.
http://www.bron.ch/products/41_100_xx.htm
I have a (somewhat old) Osram catalogue that describes HMI lamps, and
it does specify that these lamps are dimmable. And a quick blast
round the osram web site does concur with this. But I have never
seen a stand-alone HMI dimmer. Most HMI dimming is done
mechanically...
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