[PSUBS-MAILIST] Lights

Wed May 14 04:52:26 EDT 2014

Hi Alec,
Those lights on your link look good.  Let us know how you get on with your
test next week, I and im sure others would be interested to know how they
perform.
Thanks
James

On 13 May 2014 14:02, Alec Smyth via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> I used Trustfire lights for a season on Snoopy but the experience was all
> around bad. I bought two, one of which did not work due to a faulty
> connection at the endcap (which acts like a switch). The factory shipped me
> a new end-cap that fixed the problem. In fresh water they worked well, but
> when I went to Islamorada last year they lasted less than a day in the salt
> water. After just hours, one stopped working altogether and both lights
> were very visibly corroded. Silly me, I hadn't thought this through. The
> Trustfire lights close the circuit when you screw in the endcap on the
> handle. They use the light body itself as a conductor, like a car uses its
> chassis. I think the issue is that if you put two such lights in salt
> water, you will get stray currents between them.
>
> On next week's dive I'll be testing new lights, which are LED flood lights
> intended for tractors or off road vehicles. I've been really impressed with
> how solid these are. They are wired with two cables, rather than using the
> light body as a ground. Second, they have a little screw that serves no
> visible purpose, but which when removed allows you to fill them with
> mineral oil. It took a while to get the last bubbles out, but with patience
> you can fill these with oil and remove all bubbles in about an hour. The
> front plastic has a little give to absorb the compression if I have any
> bubbles left, but I think I have none. To fill them I used a syringe with a
> "dispenser needle" which is a blunt syringe needle you use for filling
> things rather than giving someone an injection. The lights are IP67, so
> supposedly water-tight, but my only mod was to reinforce the cable gland
> with some epoxy. We shall see how they work, but my hopes are up, I think
> these might finally be the ideal sub lights and can be used virtually off
> the shelf. I recommend not buying them until Snoopy returns from next
> week's dive, but here is the link if you want to take a look in the
> meantime.
>
>
> http://www.surpluscenter.com/Electrical/Lights/DC-Mobile-Equipment-Lights/12-24-VDC-3120-LUMEN-16-LED-UTILITY-FLOOD-LIGHT-12-999-B.axd
>
>
> Best,
>
> Alec
>
>
>
> On Tue, May 13, 2014 at 7:56 AM, swaters via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
>>  Thanks Alan,
>> I have been searching too for some kind of easy and cheap solution.
>>  Thanks,
>> Scott Waters
>>
>>
>>
>>
>>  Sent from my U.S. Cellular© Smartphone
>>
>>  Alan James via Personal_Submersibles <personal_submersibles at psubs.org>
>> wrote:
>>   Hi James,
>> I bought 4 dive lights off deal extreme, but not a trustfire. This was in
>> addition
>> to 4 x 900 lumen torches I had bought previously.
>> To date I have found them unreliable, mainly in the switching function.
>> Most of them
>> have 3 to 5 modes, which only complicates things. I have been doing
>> searches for
>> 12V torches or flood lights, to make things easy. My latest posting of  a
>> link to a 12V flood light was
>> the best I've found so far ($20-).
>>
>>
>> http://www.dx.com/p/ip67-waterproof-10w-700lm-6500k-white-light-led-spotlight-underwater-lamp-silver-216504#.U2rDL_mSxLY
>>
>> There is room in it to put multiple high powered leds & it looks
>>   like the thread in the back is compatible with a 12mm Blue Globe cable
>> gland. There
>> are a multitude of reflectors on the Deal extreme site to choose from.
>> There is also space  at the front to put in an oring grove.
>> I'm sure we could come up with some good cheap underwater lighting
>> options under $100-
>> Alan
>>
>>   ------------------------------
>> *From:* James Frankland via Personal_Submersibles <
>> personal_submersibles at psubs.org>
>> *To:* Personal Submersibles General Discussion <
>> personal_submersibles at psubs.org>
>> *Sent:* Monday, May 12, 2014 10:06 PM
>> *Subject:* Re: [PSUBS-MAILIST] Lights
>>
>>  Hi Scott,
>>
>> I just bought a some trustfire diving lights (there was a discussion on
>> them a while ago).  Drilled and tapped a hole in the base, screwed in a
>> blue globe gland and they were good to go.  Very easy to make and they are
>> super bright.
>> Regards
>> James
>>
>> On 9 May 2014 20:18, swaters via Personal_Submersibles <
>> personal_submersibles at psubs.org> wrote:
>>
>>  Thanks Emile!
>> -Scott Waters
>>
>>
>>
>>
>>  Sent from my U.S. Cellular© Smartphone
>>
>>  Emile van Essen via Personal_Submersibles <
>> personal_submersibles at psubs.org> wrote:
>>  Scott,
>>
>> Attached the drawing how I made my lamps. It is open source now..
>>
>> I purchased the glass and reflectors from a German webshop .
>> http://shop.dev-pein.de/Selbstbau/Glaeser/
>>
>> Regards, Emile
>>
>>  ------------------------------
>>  *Van:* Personal_Submersibles [mailto:
>> personal_submersibles-bounces at psubs.org] *Namens *via
>> Personal_Submersibles
>> *Verzonden:* donderdag 8 mei 2014 1:06
>> *Aan:* Personal Submersibles General Discussion
>> *Onderwerp:* Re: [PSUBS-MAILIST] Lights
>>
>>  Thanks Emile,
>>
>>  I have a lathe. Do you have any designs for light housings? Thank for
>> the link. I may go that route if I can't get my housings to stop leaking.
>>
>>  Thanks,
>>  Scott Waters
>>
>>
>>  -------- Original Message --------
>> Subject: Re: [PSUBS-MAILIST] Lights
>> From: Emile van Essen via Personal_Submersibles
>> <personal_submersibles at psubs.org>
>> Date: Wed, May 07, 2014 11:24 am
>> To: "'Personal Submersibles General Discussion'"
>> <personal_submersibles at psubs.org>
>>  Scott,
>>
>>  I made lamp housings for a while. But now I think it is better to
>> purchase lampheads for technical scuba diving.
>>  *http://www.gralmarine.com/#!mainlightseng/cyrv*<http://www.gralmarine.com/#!mainlightseng/cyrv>
>>   If you own a small lathe you can make them yourself.
>>
>>  Regards, Emile
>>
>>  ------------------------------
>>  *Van:* Personal_Submersibles [
>> *mailto:personal_submersibles-bounces at psubs.org*<personal_submersibles-bounces at psubs.org>]
>> *Namens *swaters via Personal_Submersibles
>> *Verzonden:* dinsdag 6 mei 2014 22:10
>> *Aan:* *personal_submersibles at psubs.org*<personal_submersibles at psubs.org>
>> *Onderwerp:* [PSUBS-MAILIST] Lights
>>
>>  Does anyone have a source for underwater pressure rated "can" lights or
>> light housings?
>>   Mine took on some water during the test. Amount of light was great,
>> just need better housings.
>>  Thanks,
>>  Scott Waters
>>
>>
>>
>>
>>   Sent from my U.S. Cellular© Smartphone
>>  ------------------------------
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