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Date: Sat, 02 Oct 1999 04:26:33 -0400
To: John.Robinson@HS*.co*
From: Mike Rodriguez <mikey@ma*.co*>
Subject: Re: Are HID Lights Safe?
Cc: cavers@cavers.com

At 07:52 PM 10/1/99 -0700, John.Robinson@HS*.co* wrote:

>I was wondering whether long term exposure to the ultraviolet light
generated by
>HID Lights is
>a problem both in and out of the water even if you don't look directly into the
>light.

[SNIP]

UV at the wavelength HID lights put out is almost entirely
blocked by a few centimeters of water.

-Mike Rodriguez
<mikey@ma*.co*>

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