Mailing List Archive

Mailing List: techdiver

Message Display

18 watts. The reason I used the "..." for terms like "bright" is that we
are talking the "effect" that we call "light" in water, chief. I just
explained what is really going on, and that is the reason you can "see"
further and "think" the light is brighter. The rest is horsehit. 

Also be aware that these are emitting ultra violet and will get you
underwater nearly as well as on land. Don't look into them, they will
give you a retina suntan.

Also know that they are putting most of their energy out in the form of
light, not heat, so you can turn them on out of the water without
worrying about meltdown.

If I were diving New England wrecks, this would be my light of choice
with a small Extreme Exposure unbreakable canister, and a backup normal
bulb slug in my pocket.

These things are the best for signalling. JJ and I were headed into a
cave while Chris Werner and Ted Cole were coming the other way. Werner
saw the two lights continuously for so far before he could see us that
he thought he was going hypoxic and swithed to open circuit to get a
"reality check".
  
Mark Melendez wrote:
> 
> At 03:11 PM 7/24/99 , kirvine@sa*.ne* wrote:
> 
>      This makes you effectively feel like you have a lot more
>      light than with
>      a bigger normal light, yet the smaller light ( smaller
>      wattage ) draws
>      much less current. The lumens make no difference except in
>      comparison to
>      the same frequency, as in video where you would use a larger
>      HID bulb
>      for more "light".
> 
> What is the wattage of the HID bulb that you have? The above is an
> interesting statement, Don't forget one big reason why you have more
> light aside from the higher color temp is the fact that an HID light
> is about 5 times brighter than a tungsten bulb of the same wattage.


--
Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'.
Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.

Navigate by Author: [Previous] [Next] [Author Search Index]
Navigate by Subject: [Previous] [Next] [Subject Search Index]

[Send Reply] [Send Message with New Topic]

[Search Selection] [Mailing List Home] [Home]