Alan and Brian,
When you get a minute, take some pics and post or email them. I'd like to see what you've come up with thus far.
JimSent on the Sprint® Now Network from my BlackBerry®
From: "Alan James" <alanjames@xtra.co.nz>
Sender: owner-personal_submersibles@psubs.org
Date: Wed, 21 Sep 2011 09:29:45 +1200 To: <personal_submersibles@psubs.org> ReplyTo: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] instant dive light
Well done Brian,
reference to how much pressure your bulbs could
take, but it's packed away somewhere.
Modifying one of these existing lights seems
easier & cheaper.
The flash light I gave the link to, I was
intending for submarine use. If simply modified for
diving, the switch being a"push in" type would possibly turn itself on under pressure
or not be
able to be plunged if you got all the air
out.
Regards Alan
----- Original Message -----
Sent: Wednesday, September 21, 2011 8:41
AM
Subject: Re: [PSUBS-MAILIST] instant dive
light
Hi Alan,
Just got back from the harbor, succsess !! I dropped it down to around
35' with the light on everything seemed fine. It was difficult
filling it totally with no air bubbles, I had one tiny one. I may try to
put some silicone on the O rings to keep any min oil from leeking
by. The next time I fill it I'm going to do it in a min oil
bath so I can submerge the entire light in the oil to get all the air
out. Those xenon bulbs are apparently pressurized, not sure if that
makes a difference. don't know how much pressure, probably not
much.
I would like to make an led light as well.
Brian
On Tue, Sep 20, 2011 at 11:37 AM, Alan James <alanjames@xtra.co.nz> wrote:
Hi Brian,
I got part way through making some LED dive
lights by modifying some $20- lights I bought off "Deal
Extreme".
900 lumen & free freight. They operate off
around 4 volts, so I'm going to link them in 3s to operate off 12 volts.
They have O rings at every join
& are made of a fairly thick aluminum. I
cut the body down & pushed a hose fitting in the end, then soldered
in wiring & put on a tube, ready to oil
compensate. The LEDs in general take tremendous
pressure, I believe a similar oil compensated system went down 10
kilometers.
Regards Alan
----- Original
Message -----
Sent:
Wednesday, September 21, 2011 3:30 AM
Subject:
[PSUBS-MAILIST] instant dive light
HI All,
I was pricing dive lights for the upcoming lobster season and was floored
by the outragous prices they charge for those things. So I decided
to take my 6 cell mag light, which has a xenon bulb in it, and fill the
entire thing full of mineral oil. The mag lights have O rings at all
the critical points of seperation of the different segments of the
light. I'm going to be dropping it down to 40' today to see if the
bulb can take the pressure. If not then I'll most likely go to an
LED mag light.
Brian
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