A matter of curiosity

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rickw12
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A matter of curiosity

I received a Sofirn SP32A v. 2 today to replace a Wowtac that went bad. I already had an SP32A, but version 1.

This isn’t a problem; just a matter of curiosity. The first SP32A version had a high output of 900 with 1550 for turbo. The newer version has 500 and 1300 respectively. Version 2 has ART and is said to be more stable. Why might they have lowered those levels?

Rick

contactcr
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The newer version uses a regulated/more efficient driver now I think.

The older version was probably direct drive on turbo (that’s why it has a wire spring bypass).

No sense generating twice the heat for a few hundred more lumens and worse runtime.

rickw12
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Thanks. I hadn’t looked at the runtimes. One hour 900 lumens for version 1; 3:35 500 on v. 2. Even turbo is almost 5 times longer. I think I’ll keep v.2 in the car.

Rick

pennzy
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I have both also and find the newer one more stable and cooler. Turbo on the first heated up fast. I don’t see any step down with the newer one at top of ramp. Maybe my eye just doesn’t catch it?

Muto
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Also have both, 32A has the fried egg in center of beam and pulls scary amps on Turbo. Intentionally use a lower amp battery in that one for safety.
Has a lower low vs the V2 but like the V2 overall better.
Got it in that cool color changing/appearing platinum/silver/gold depending on the light.

“History doesn’t repeat itself, but it sometimes rhymes,” Mark Twain

After the Apocalypse there will be only 2 things left alive, Cockroaches and Keith Richards

“You’ll develop like a herd mentality,”
“It’s gonna be herd-developed and that’s gonna happen.”

Yep it already happened

rickw12
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I have an Xtar 2600mAh battery in the 32A. Would you say that’s low enough amperage for safety? My V.2 was advertized as gold; I’ll have to look at it in different lights.

Rick

Muto
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rickw12 wrote:
I have an Xtar 2600mAh battery in the 32A. Would you say that’s low enough amperage for safety? My V.2 was advertized as gold; I’ll have to look at it in different lights.

Yeah that battery is fine.
A stronger battery is fine as long as you remember not to burn on turbo especially if you tail stand it. would never let anyone else use it that is not a flashaholic.
Put a Samsung 30Q when first purchased and it read over 7 amps on turbo.
Sofirn realized very quickly that this thing was too much and changed to V2. Don’t think there were too many of the 32A’s made.

“History doesn’t repeat itself, but it sometimes rhymes,” Mark Twain

After the Apocalypse there will be only 2 things left alive, Cockroaches and Keith Richards

“You’ll develop like a herd mentality,”
“It’s gonna be herd-developed and that’s gonna happen.”

Yep it already happened

pennzy
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Do you guys see a noticeable step down on high with the V2?

rickw12
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Yes, that’s why I posed the question. I still don’t know much about the inner workings of these things. But the explanation of lower heat and longer runtimes made sense.

I use it in step mode rather than ramping, so I haven’t checked out the difference in that mode.

Rick

pennzy
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I am not sure you understand my question. I am asking if you see the thermal control kick in when you use the V2 on high. I don’t.

rickw12
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Sorry. No, I didn’t understand. I haven’t kept it up at its highest level long enough to find out about the step down.

Rick

pennzy
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Yes , it is strange. I can run it at high for long periods of time without a noticeable drop in output yet the body stays relatively cool. So I am wondering if it drops and I just don’t see it or it does not drop which seems unlikely. I have not seen any comments about this anywhere.