Sofirn C8 Quick Review

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Barkuti
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Just sent this to Tracy:

 

Quote:

Hello Tracy,

I heard you've worked out the initial C8F revision issues, namely the non-DTP (no thermoelectric separated) MCPCB. It's was a dissipated power per surface unit disaster waiting to happen. 

With regards to the interface, I think plan 2 has the highest chance of receiving great appraisals. I believe people wanting to namely use groups 2 or 3 could complain from needing to multiple click the torch to switch it on  the way they mean it to play with plan 1. Just my opinion, of course.

 

Cheers 

 

Agree with Lightbringer with regards to the triple and doble click function swap.

 

Cheers Party

Jouna
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Jouna wrote:
Just talked in other matter with Cissy from Sofirn. She asked me something, I answered but maybe here are also people that could say their opinions. It’s about new C8F. There are two kind of driver groups and Cissy asked which one would be better. I quote Cissys message straight here and do tell what you think.

“Switch: one side switch
1. 3 groups modes

One click enter group1 : Low- mid-high

Double click enter group2: LL-Low-mid-high

Three click enter group3: firefly-LL-Low-mid-high

In any groups when light on, double click enter hidden mode:strobe-SOS-bike -strobe. three click enter turbo mode 1950 Lumens

2. 3 groups modes:

Turn on enter group 1: low-mid- high

When light on, four times quick press switch to change groups, cycle from group1- group2-group3-group4

In any groups when light on, double click enter hidden mode:strobe-SOS-bike -strobe. three click enter turbo mode 1950 Lumens”

And like Jackie said above C8F is coming with DTP MCPCB because of problems with heat.

3-D photo of C8F to come:

Cissy/ Sofirn needs help to decide from 2 groups. She gives everyone who respond to this query 2$ discount QR code from at least 15$ purchase from Sofirn AE shop. I sent it via PM to all who gives their opinion which group would be better.

Copy of what Cissy said about double click after I asked could it be modified:

“Double click to turbo 1950Lm and three click to strobe-SOS-bike-strobe.”

And also assumption from Cissy: “also may use 3 pieces XPL instead of XPG3”

Jackie
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Box wrote:
One group with high only please! Big Smile
Crazy may it burn?
EagleShield
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I vote plan 2 now when it’s only 3 groups you can switch between.
It’s easier for “normal” people to get right.
Double click for turbo should be standardized.
3 fast clicks for strobe…
Changing groups should atleast be 5 fast clicks so it don’t accidently change group instead of putting on the strobe to blind an attacker or whatever strobe is used for.
If I was in that situation and I panic and try to put on the strobe and accidently changed mode instead of getting the strobe I think I would have gotten more panic.
If i just did a double click when panic I think ~2000 lumens would still blind the attacker.

How do animals react on high lumen strobe when attacking?
Should I strobe an attacking bear, wolf and such animals?

Just curious..

Edit: damn bad English

EagleShield
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Does this Sofirn driver have any hidden turbo?
It says 86%PWM at high, can’t find any info about any turbo.
I guess it’s the driver that’s in the Sofirns right now?
No thermal stepdown?

Link:https://m.aliexpress.com/item/32834504322.html

Sofirn New C8A C8F C8T Driver 2 Groups Circuit Board Anti-reverse LED Driver Chip mode memory

Size:Diameter 16.8mm

Protection:Reverse polarity protection, low voltage protection, Memory mode function

Input voltage: 2.8-4.2V;

​Current: Directly-drive

Suit for : Cree XM-L ; XP-L, XP-G

2 Groups:
Group 1:Low 5%PWM> Mid 30%PWM > High 86%PWM,Double click strobe 86%PWM.
Group 2 :Moonlight > Low 5% PWM> Mid 30%PWM > High 86%PWM> SOS 86%PWM,Double click strobe 86%PWM

Low voltage protection: Yes. The light is automatically turns off when the voltage is lower than 2.8 volts. The signal is that the light slowly flashes for 1 minutes

Group Set Operation: When on, 3 click continuously, the light flash 2 times and then automatically goes to next mode group.

Edit the link.

EagleShield
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Hmm. It says this above the text I wrote in the other post.

Specifics
Voltage 2.6-8.4V
Brand Name Sofirn
Usage for flashlight
Certification CE

Not right?
Is it only 1 cell driver as the text under this text says?

Size:Diameter 16.8mm

Protection:Reverse polarity protection, low voltage protection, Memory mode function

Input voltage: 2.8-4.2V;

​Current: Directly-drive

I hate when sellers give 2 different descriptions on the same item.
Only makes me not buy it.

Caleb
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Jouna wrote:
Just talked in other matter with Cissy from Sofirn. She asked me something, I answered but maybe here are also people that could say their opinions. It’s about new C8F. There are two kind of driver groups and Cissy asked which one would be better. I quote Cissys message straight here and do tell what you think.

“Switch: one side switch
1. 3 groups modes

One click enter group1 : Low- mid-high

Double click enter group2: LL-Low-mid-high

Three click enter group3: firefly-LL-Low-mid-high

In any groups when light on, double click enter hidden mode:strobe-SOS-bike -strobe. three click enter turbo mode 1950 Lumens

2. 3 groups modes:

Turn on enter group 1: low-mid- high

When light on, four times quick press switch to change groups, cycle from group1- group2-group3-group4

In any groups when light on, double click enter hidden mode:strobe-SOS-bike -strobe. three click enter turbo mode 1950 Lumens”

And like Jackie said above C8F is coming with DTP MCPCB because of problems with heat.

3-D photo of C8F to come:

!{width:50%}http://i11.aijaa.com/b/00542/14470608.jpg!

I prefer Option #2… preset mode groups

With double click to turbo.

Triple click to hidden strobe.

Use XPL2 leds

Thanks!

Barkuti
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EagleShield, you can open the images in a new window and copy its link from there, some browsers even allow you to grab the link directly. Maybe you did that because you have the app installed? Wink

I can't stand nearly any specific purpose app, they're full of shittiful restrictions versus a browser in desktop mode. I only install the AliExpress app to grab “app only offers”, to immediately uninstall it just after the purchase. As a user of Chrome browser, keeping the app installed is a real piss off experience, constantly bugging the user with prompts to open AliExpress links in that @#$% software. The browser does it all and does it better nearly always. 

It is only a single cell driver, as far as I know. Maybe it can be used to DD 2S emitters with 2S li-ion input… 

The low power MOSFET is probably an A09T (AO3400), the high one is a 9926A (dual MOSFET per package).

 

Cheers Smile

EagleShield
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Yeah. I have the app installed.
Trying to get a link to that item too but only end up getting to Spanish aliexpress it seems.
And what’s really annoying is when trying to browse aliexpress with chrome and have the app installed.. it opens every item in aliexpress app but I click that chrome should do it!!

Why do I use the app you would think? Just because I dont like to log in all the time. I don’t trust any browser to save my password.

EagleShield
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I see that they did the right thing with the new SP32A. (In my opinion. Double click to strobe is evil)

Operation Instruction
The Flashlight is set with one side switch, default group 1 when first time using.
Groups Setting:
From Group1 to Group2: from On, hold&press the switch for 3 sec, 3 blinks to confirm.
From Group2 to Group1: from ML or High (2 blinks at ML or High ), hold&press the switch for 3 sec, 3 blinks to confirm.
Group 1——6 modes
fast click to turn on, and click the side switch to cycle modes, ML→Low→Medium→High; Hold& press to turn off. When on, Double-click to activate Turbo, click to return to the original mode; Triple-click to activate Strobe, click to return to the original mode.
Group 2 : ——-Stepless dimming//Ramping Operation : PWM from 1% to 60%.
Fast Click to turn on, hold&press the side switch to ramp up and down; changing direction unless pauses for 1.5 sec, over 1.5 sec, the direction is the same, click to turn off. When on, 2 clicks to activate Turbo, fast click to return to the original mode; 3 clicks to activate Strobe, fast click to return to the original mode.
Lock-out Function: From off, 4X-clicks to lockout(2 blinks to confirm, Indicator Light is off in Lock-out); same to unlock.

.

Still I wish it was 4 clicks to change group and 5 clicks from off to lock-out. Or something else..
How many times are you accidently going to change group now instead of ramping from ML or High…

.

Funtastic
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@Eagleshield

You can’t accidentally change mode groups from ramping. It’s poorly written instructions.

You have to hold down the switch and wait until it ramps from ML to High or High to ML, it’ll blink twice at high or ML to let you know you’ve reached the lowest or highest ramping setting, continue to hold the switch and it’ll blink twice again after 3 seconds to change groups.

Awesome torch for the price and they’ve recently made their own unprotected battery to go with it. It’s not Ultrafire, they just used the same pvc.

Texas Ace Lumen Tube calibrated with maukka lights

fluke
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2 years old.

Sorry bring back an old thread.

Will the stainless steel bezel fit the 21700 Sofirn C8F?

Skylight
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The Convoy SS bezel fits the Sofirn C8F 21700 well. Cool I don’t know which other stainless steel bezels you are referring to.
There would be a dedicated thread for the new C8F 21700: http://budgetlightforum.com/node/62876

Always looking for: used or damaged flashlights for repair and MODDING

fluke
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Yep. Was just wondering if Convoy C8 Stainless bezel fitted the new Sofirn 21700 C8F.

Skylight
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In fact I did not test the stainless steel bezel but the normal aluminium bezel of a Convoy C8+. The bezels of the Sofirn C8F and the Convoy C8+ are perfectly interchangeable. So in the near future I will probably equip both flashlights with the Convoy SS bezel. Should look a lot nicer with the C8F! LOL

Always looking for: used or damaged flashlights for repair and MODDING

fluke
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I just ordered one of Vihn's Oslon flat black versions, I cant wait to play with that.

Skylight
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Have fun, then. Big Smile The C8F is an awesome flashlight. Crown

Always looking for: used or damaged flashlights for repair and MODDING

Petr J.
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Fits C8F perfectly.


PBWilson
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I’m new to the whole C8 club, but I just got a Sofirn C8A to dip my toe in to the more throwy lights. I’m much more apt to grab a floody light, but I’m looking forward to the time when darkness falls so I can give it a test and see just a bit further off into the distance. I know it’s not as throwy as the C8T or as powerful as the C8F, but I’m hoping it’ll be a good all-around light.

johnkey68
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Do not pay attention to optics.
These are just examples of bezels of varying degrees of processing on various types of С8F models.




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