[PSUBS-MAILIST] (no subject)

[Sean T. Stevenson via Personal_Submersibles]

I think that changing the illumination angle can do a lot more to reduce backscatter than does simply reducing brightness. Certainly my experience has been when diving with a lot of particles in the water that holding lights out to the side and aiming in produces far superior visibility to simply lighting my field of view straight ahead.

Sean

-------- Original Message --------
On Mar. 7, 2020, 17:27, Alan via Personal_Submersibles wrote:

> Brian,
> it used to frustrate me that there were so many AC LED lights out there
> & so few DC. There are heaps of dim-able AC lights but I had to get a Chinese
> company to make me up a 36V driver with dimming.
> Dimming is an asset when you get a lot of back scatter in low visibility.
> I have wondered whether you could hack an AC light because they probably
> use a rectifier for DC on the LED.
> Alan
>
> On 8/03/2020, at 12:59 PM, Brian Cox via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>
>> There are a lot of 110AC led's out there , it would be a simple matter to run a DC inverter to make 110ac voltage ,  I wonder if there would be any advantage to that,  there might be some better quality led's that are made for AC voltage, Any thoughts on that?
>>
>> Brian
>>
>> --- personal_submersibles at psubs.org wrote:
>>
>> From: hank pronk via Personal_Submersibles <personal_submersibles at psubs.org>
>> To: Personal Submersibles General Discussion <personal_submersibles at psubs.org>
>> Subject: [PSUBS-MAILIST] (no subject)
>> Date: Sat, 7 Mar 2020 16:30:26 +0000 (UTC)
>>
>> [                            15:13 Now playing Watch later Watch later Add to queue Add to queue                ](https://www.youtube.com/watch?v=dHDUilUO6P8)
>>
>> https://www.youtube.com/watch?v=dHDUilUO6P8
>>
>> How To Make An Underwater Submarine LED Light Bar
>>
>> In this video I am converting an everyday LED light bar into the deep diving, oil filled, underwater light bar t...
>>
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