Short Review of Sofirn SP33 v2 with XHP50.2

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teacher
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If I have a real shipping problem with a package from China I contact this guy, Wu Lo Wun; to fix it!

Look closely at his right hand. See the scanner & the package?? Just one of mine he got ‘back on track”.

He is a good guy to know…… Thumbs Up


.
.
Big Smile Big Smile Big Smile Big Smile

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

 .................................. "Slow is Smooth, Smooth is Fast" ...................................

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JasonWW
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Gebe wrote:
Yeah, I’m having issues with AliExpress right now. They’re saying orders completed that I haven’t received and tracking numbers that are worthless.

With Aliexpress, you have to confirm that your order was recieved.

Have you tried your tracking number on 17track?

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teacher wrote:
If I have a real shipping problem with a package from China I contact this guy, Wu Lo Wun; to fix it! Look closely at his right hand. See the scanner & the package?? Just one of mine he got _'back on track"_. He is a good guy to know...... Thumbs Up !{width:100%}https://s.yimg.com/lo/api/res/1.2/MGZJ84UiO5fu16NY2YOSZQ--~B/YXBwaWQ9eWl...! . . Big Smile Big Smile Big Smile :D

 

He's the guy "in the know" Big Smile

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Streamer wrote:
klrman wrote:

 I think I spotted my package from Teacher's post in the image below, it's the blue one in the middle............ approx. eta, about July 2020

 

No, no, no way! That blue package in the middle is the one I ordered. }D

 

Sorry bud, it's mine 

teacher
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klrman wrote:
teacher wrote:
If I have a real shipping problem with a package from China I contact this guy, Wu Lo Wun; to fix it! Look closely at his right hand. See the scanner & the package?? Just one of mine he got ‘back on track”. He is a good guy to know…… Thumbs Up

. . Big Smile Big Smile Big Smile Big Smile . . .
He’s the guy “in the know” Big Smile
Thumbs Up … Yep, he is…. THE FIXER !! .. Wink

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

 .................................. "Slow is Smooth, Smooth is Fast" ...................................

       Texas Lumens Flashlights / M4D M4X Deals : sign up - save $$$$  

         Rudeness Level _ mΩ _ {width:70%} _ LightWiki _ LED Tint Chart  

      Xlamp size chart _ BatteryU _ Flashaholic? Need Professional Help???            TheOriginal _ TAB _ LightSearch _ BatterySearch _ 14500's _ DiCal 

 

                                             

Funtastic
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JasonWW wrote:
Gebe wrote:
Yeah, I’m having issues with AliExpress right now. They’re saying orders completed that I haven’t received and tracking numbers that are worthless.

With Aliexpress, you have to confirm that your order was received.

Have you tried your tracking number on 17track?

After X amount of days it expires and completes the order on it’s own. Always check when the buyer protection ends. If you hadn’t received it you should have requested an extension on the protection, if ignored, open a dispute with proof of the invalid tracking

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hank
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Yeh, I got a notice a delivery had been completed, when it hadn’t — a week later the package arrived.

I also found a very good deal on a flashlight on the 11/11 sale by some place called “Madeline Store”. After a month I inquired and the seller told me it had been lost in transit, please cancel. I pointed out they were still selling the same flashlight at 2x the price, so they could send me one. I got a reply saying the flashlight I ordered had failed quality control and they weren’t going to ship it, please cancel.

I’m tempted to try to be annoying. But I suspect that’s a mug’s game.

Shorter: Ali is just a sale-and-payment collector for a lot of little operators, some of them more reliable than others.

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I’ve been given the “failed quality control” notice and it was due to EMS stopping batteries inside the flashlights to New Zealand. Never had an issue with China post though unless it’s batteries on their own.

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BlueSwordM
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Ok wut. That’s not normal.

As long as it is shipped inside of the light, it should not be a problem at all.

My very own high current Beryllium Copper springs Gen 3:
http://budgetlightforum.com/node/67401
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

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That was a year ago, maybe okay now but I use “a special airline” (that’s what Sofirn call it) for bare cells as well, costs quite a bit though. I always buy in bulk as I resell online here.

I was keen on getting a few SP33’s but a couple have pointed out unusual driver behavior and short runtime on Turbo and High. Think I’ll stick with the SP36 & Q8

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Funtastic wrote:

I was keen on getting a few SP33’s but a couple have pointed out unusual driver behavior and short runtime on Turbo and High. Think I’ll stick with the SP36 & Q8.

What? Please explain.

So your not bothered by the issues of the SP36 and Q8?

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Funtastic
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JasonWW wrote:
Funtastic wrote:
I was keen on getting a few SP33’s but a couple have pointed out unusual driver behavior and short runtime on Turbo and High. Think I’ll stick with the SP36 & Q8.
What? Please explain.

As seen below there’s issues with modes at room temp

teacher wrote:
The switches on both of mine are somewhat finicky. Sometimes they will cycle through L > M > H and sometimes they won’t. It is almost as if the driver has to warm up a bit after sitting a while???
Streamer wrote:
Eco mode is FUBAR on this sample. It can’t be activated when the torch has sat and reached room temp.

Ignore my comment on poor runtime. I didn’t fully read the comment that was based off of the manual, not an actual test.

JasonWW wrote:
So your not bothered by the issues of the SP36 and Q8?

The only issue I’ve encountered with 2 out of 5 Q8’s stepping down using temperature for ramping. First it activates turbo then starts ramping up from moonlight. Annoying but can either be covered like you suggested or change to timed step down.

I’m guessing the SP36 would have this since it’s the same firmware. Any other issues?

EDIT: I’m not bothered by dark spots, donut in hotspot, glued driver. Just issues on how it operates that could effect sales.

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Are you being serious? Just because two people had a problem you think that problem is found in all the lights?

No flashlight ever made is going to have a 100% perfect production run. Take any model from any company and there will always be a couple of faulty ones. Always.

For the record, my SP33 v2 works perfectly, there are no dark spots or donut shaped hotspot or any other such nonsense.

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I discovered last night that I loose both turbo AND high below 3.9v cell voltage. This is with good condition KK26650’s. I’m currently depleting a pair of 30Q’s (the most capable cells I own) down to exactly 3.95v in my hobby charger to test later today.

Once this cell voltage is hit and I try to step up to turbo the light will almost immediately (a second or two) step back down to medium and will then only cycle through the 2 lower modes while holding the button, even after a power cycle the light will only ever come back on and cycle low->medium.

Can anyone else test for this issue? Regardless of voltage are there any conditions in which others are loosing both turbo AND high? To clarify its not like the light is going low-med-med when this happens like it just can’t pull the amps it needs, it’s ONLY cycling through the two modes, low-med-low-med-low-med back and forth.

I’m not too concerned as I made pretty good progress on my driver boards the last few days and plan to make my
sp33 a 3v light asap, plan now is to try both LH351D and luxeon V2 and see which I like the beam of better. Unfortunately the stock daughter board isn’t usable as the switch and switch LED pins arnt broke out and I’m getting tired of air wiring connections from 1mm pitch pads lol.

 RIP  SPC Joey Riley, KIA 11/24/14. Now I am become death, the destroyer of worlds.

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I don’t know at what voltage it started but mine would cycle L>M, L>M and double tap would go into turbo and stay there but it was only at the high lumen level. Also, no 2 minute step down when at this “turbo” level. When I checked the battery it was about 3.7 but that was after some running.

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pennzy wrote:
I don’t know at what voltage it started but mine would cycle L>M, L>M and double tap would go into turbo and stay there but it was only at the high lumen level. Also, no 2 minute step down when at this “turbo” level. When I checked the battery it was about 3.7 but that was after some running.

This is exactly what I reported at the beginning of this thread. I loose Turbo at 3.70 volts.

If you are loosing turbo at a higher voltage, make sure your battery connections are clean. Dirt or grease on the springs or battery tube ends might be causing a small voltage drop making the driver think the battery is at 3.7 or less.

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Cereal_killer wrote:

Can anyone else test for this issue? Regardless of voltage are there any conditions in which others are loosing both turbo AND high?

As I said at the beginning of this thread, you will loose Turbo and High at 3.40 volts.

At 3.70 volts you loose turbo. Then the light will only cycle between low and medium. A double click takes you to High.

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Cereal_killer wrote:
I discovered last night that I loose both turbo AND high below 3.9v cell voltage. .

Same here. When my 26650 battery hits 3.9Volts, I lose Turbo and High. Of course, I’ve had a FAULTY driver from the getgo.

I’d like another SP33 when they hit Amazon USA. Had it not been for Sofirn’s help, I don’t think the refund would have been handled as quickly as it was. That’s why I would wait on Amazon. Don’t care to be jousted around by Ali.

Yeh, I’m looking for a good sample of this torch. I like it. Size is perfect in hand. Thumbs Up

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So is it working properly if you lose turbo at 3.7?

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pennzy wrote:
So is it working properly if you lose turbo at 3.7?

I’m guessing post #1 was not very clear on this topic. I rewrote it to better explain. Here is the new section from post #1.

Quote:
At 3.70 volts the 2200 lm Turbo mode dissappears. Now when you hold down the button you cycle between Low and Medium. A double click takes you to the new “Turbo” level (high mode, 920 lm). So you have Eco, Low, Med and a 920 lumen Turbo mode.

At 3.40 volts you loose High mode. Medium becomes the new “Turbo” mode.

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Thanks, I understand your 1 st post . It just seems too early to be losing turbo but I don’t know. That is my question. I’m not to sure of the math . I suppose with a regulated output, the lumens can’t just drop off . That would make sense . At 3.7, it can no longer make 2200 lumens.

This is why after 2 1/2 years of Elect. Tech. I chose another career path. Big Smile

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JasonWW wrote:
Gebe wrote:
Yeah, I’m having issues with AliExpress right now. They’re saying orders completed that I haven’t received and tracking numbers that are worthless.

With Aliexpress, you have to confirm that your order was recieved.

Have you tried your tracking number on 17track?

Thanks Jason. Yeah, I tried that and nothing. I contacted seller awhile back and they said they would ship a replacement. I’ve asked them twice if they’ve shipped the replacement but nothing but silence. I just opened a dispute with AliExpress.

It’s been 2 months.

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JasonWW wrote:
Are you being serious? Just because two people had a problem you think that problem is found in all the lights?

No flashlight ever made is going to have a 100% perfect production run. Take any model from any company and there will always be a couple of faulty ones. Always.

For the record, my SP33 v2 works perfectly, there are no dark spots or donut shaped hotspot or any other such nonsense.

I do understand that.

If it was just for myself to play with there’s no concern. I just don’t want to buy in bulk and have to thoroughly test each one before selling it. When getting my own branding it’s 50pcs per model. The lack of reviews on the SP33 and the few people that received them, some have issues so I’ll hold off until the bugs are sorted. It’s $8.70 USD per KG shipping to New Zealand. Shipping costs a lot more as I purchase bulk cells too using an express service.

I’d also be bundling the Sofirn 26650 and it’s unclear how long it’ll last on Turbo since no one has tested? I don’t really want to import other 26650’s just for longer Turbo as it’ll up my prices and I don’t really want to go that route

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pennzy wrote:
Thanks, I understand your 1 st post . It just seems too early to be losing turbo but I don’t know. That is my question. I’m not to sure of the math . I suppose with a regulated output, the lumens can’t just drop off . That would make sense . At 3.7, it can no longer make 2200 lumens.

Remember that a resting voltage of 3.70 is pretty much a dead battery. I usually recharge them or swap them out once they get under 3.8v.

I’ve found that my lights tend to go from 4.2v to about 4.0v pretty fast then spend forever going from about 4.0v to 3.8v. Then once it gets to the 3.7v range it’s weak and the voltage starts dropping pretty quick again.

When it comes to boost drivers, as the voltage drops, the driver has to pull more amps from the battery. There is always going to be a cutoff point where the driver designer has to limit the current to keep from burning up the driver.

Some boost driver lights will give higher output, let’s say 3,000 lumen, but they will have to reduce the output sooner. So they may loose turbo at 3.9v for instance.

The Acebeam EC65 is a boost driver light that does a measured 3750 lumen, but it can only do it for about 1 minute! After that, the factory battery voltage is too low (too much voltage sag) and you only get a reduced output of 3000 lumen. This is an extreme example.

The SP33 is a more conservative example that does 2200 lumen and can maintain this all the way down to 3.70 volts. I like this strategy. It makes for a much more practical light.

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pennzy
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Good explanation. Now I get it.

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Funtastic wrote:

I’d also be bundling the Sofirn 26650 and it’s unclear how long it’ll last on Turbo since no one has tested? I don’t really want to import other 26650’s just for longer Turbo as it’ll up my prices and I don’t really want to go that route

A couple people have tried the Sofirn 26650. Their 5500mah model seems to measure closer to 5200mah and their 5000mah seems to measure closer to 4700mah. This was measured on typical battery chargers that measure capacity so not super exact.

It seems like the more current reviews show the capacity closer to spec.

Their internal resistance is a bit high. They are not high drain cells and don’t produce high output in FET driven lights. Since the SP33 seems to have a set voltage that determines when it looses Turbo mode and not a set current limit, I’d say their 26650 cells should be fine to use in the SP33.

I wish we had some better reviews of their batteries.

Maybe I should buy 2 of the 5000 and 2 of the 5500 to test out?

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JasonWW wrote:

A couple people have tried the Sofirn 26650. Their 5500mah model seems to measure closer to 5200mah and their 5000mah seems to measure closer to 4700mah. This was measured on typical battery chargers that measure capacity so not super exact.

Thank you for replying.

I was after a runtime on Turbo but realized I could test on my CBA. At 5.80A my 26650HC2 5000mAh runs for 12 minutes to 3.7V.

What current is it pulling at 3.7V though? I’m just trying to get an idea of runtime.

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Funtastic wrote:

What current is it pulling at 3.7V though? I’m just trying to get an idea of runtime.

It pulls the same 5.8A from the battery from 4.2v down to 3.7v. This boost driver is not like the typical boost driver.
http://budgetlightforum.com/comment/1420137#comment-1420137

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Thank you.

I’m getting a better understanding of how the driver works now. It’s quite a decent driver when comparing to Direct Drive. At 3.7V on direct drive the Turbo may only be outputting 920 lumens for the High mode on this boost driver. Just because you can access Turbo on a Direct Drive doesn’t mean it’s outputting that brightness. At least you know on the Boost that it’s outputting a set amount or close to it

I might get a sample light and see what I think

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Funtastic wrote:
Thank you.

I’m getting a better understanding of how the driver works now. It’s quite a decent driver when comparing to Direct Drive. At 3.7V on direct drive the Turbo may only be outputting 920 lumens for the High mode on this boost driver. Just because you can access Turbo on a Direct Drive doesn’t mean it’s outputting that brightness. At least you know on the Boost that it’s outputting a set amount or close to it.


Correct.

A FET driver, or direct drive, connects the battery directly to the LED. This means the output slopes down as the battery voltage drops.

With a boost driver, the output looks like steps. It gives steady output to a certain voltage or current, then steps down to a lower, but steady output.

They each have their pros and cons.

A FET driver is capable of higher output initially, but then steadily declines. It’s easier and cheaper to build, but requires the right battery and emitter combo.

A boost driver can have a lower, but steady initial output which can be set at the factory. This means less heat and less battery drain. It’s more expensive and complicated to build, though.

You can’t even run an xhp50.2 with a FET driver. It will draw too much power and burn itself up. With a boost driver, such as with Lexels and Richards (MTN E) boost drivers, you can set the current limit for the emitter by changing resistors. Let’s say you want a 3A turbo limit for a xhp50.2. That would probably draw 7A to 8A on the battery. As battery voltage drops, the current will go up (in Lexels and Richards design). Then say at 15A on the battery, the driver will have to step down the output to keep from burning itself up.

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