Sofirn C8F host. 21700 C8F Available

1147 posts / 0 new
Last post
MRsDNF
MRsDNF's picture
Offline
Last seen: 9 hours 17 min ago
Joined: 12/22/2011 - 21:18
Posts: 12373
Location: A light beam away from the missus in the land of Aus.

As only one of the very few that can Mike. Beer

My current and or voltage measurements are only relevent to anything that I measure.

Budget light hobby proudly sponsored by my Mastercard and unknowingly paid for by a hard working wife. 

djozz said "it came with chinese lettering that is chinese to me".

old4570 said "I'm not an expert , so don't suffer from any such technical restrictions".

Old-Lumens. Highly admired and cherished member of Budget Light Forum. 11.5.2011 - 20.12.16. RIP.

 

Flashy Mike
Flashy Mike's picture
Online
Last seen: 8 min 30 sec ago
Joined: 01/14/2016 - 16:38
Posts: 1017
Location: Germany

DB Custom wrote:
I held it for 3 minutes in a 73º ambient setting.
Thanks, so it’s pretty usable for high lumen output. I think I will do something similar with my host.
DB Custom
DB Custom's picture
Offline
Last seen: 2 hours 19 min ago
Joined: 01/13/2013 - 22:28
Posts: 18028
Location: Heart of Texas

Should probably elaborate, I held it by the head for 3 minutes, it was getting quite warm to the point of being hot indeed. Some cooler night air on it with flow would take it longer, of course.

This should translate out to around 1372 lumens each emitter at just over 3A each, so the heat is fairly manageable for this emitter. Considering slicing and dicing to tighten up the beam profile, have to play with it some more first…

Dale

contactcr
Offline
Last seen: 7 hours 3 min ago
Joined: 05/19/2017 - 18:52
Posts: 538
Location: US

I chose this light as my first full flashlight mod and it makes me feel better when Dale says the word tricky when describing it. Between the e-switch and the way the reflector comes together things are very tight. Needless to say there is plenty here for me to ‘learn’ in just this one single host.

DB Custom
DB Custom's picture
Offline
Last seen: 2 hours 19 min ago
Joined: 01/13/2013 - 22:28
Posts: 18028
Location: Heart of Texas

I found it easiest to solder longer-than-necessary wires onto the mcpcb, attach the mcpcb to the reflector (loosely, so it doesn’t pull it down tilted due to the centering rings) then put the mcpcb/reflector assembly into the head (with thermal paste) and flip it over to put the central screw in, snugging the assembly into place (have to watch orientation, the mcpcb screw has it’s own cut out in the shelf) Once the driver has switch wires soldered on I cut the leads to length and solder them onto the driver. Everything gets tucked in and the retaining ring installed.

Like doing surgery, almost. lol

Dale

contactcr
Offline
Last seen: 7 hours 3 min ago
Joined: 05/19/2017 - 18:52
Posts: 538
Location: US

After some trial and error this is basically the same conclusion I came to as well. However, since I was not confident in my assembly I kept the longer than usual wires and spent a lot of time stuffing them in the body so I could test before the final “snip”. Needless to say I re-did my solder a few too many times (troubleshooting my switch) and I think I bridged something I shouldn’t have. I was testing with a protected battery and kept getting no light. I got curious and swapped to a VTC6 and needless to say I got something, magic smoke. Pretty much right after I tightened the battery down I could hear the battery was suddenly “loose” in the body. It had instantly vaporized the tail spring including the bypass.

Ordered a new driver to get a clean slate and surgery will resume this weekend.

DB Custom
DB Custom's picture
Offline
Last seen: 2 hours 19 min ago
Joined: 01/13/2013 - 22:28
Posts: 18028
Location: Heart of Texas

Ouch!

My buddy wants to know why they call it magic smoke? He says it’s satanic. lol

I’m thinking of disassembling mine completely and baking the finish, need to differentiate this one from the other’s and that’d be a good way to do it. Smile (Yes, I really really like how Kawiboy’s Convoy came out! lol )

Dale

contactcr
Offline
Last seen: 7 hours 3 min ago
Joined: 05/19/2017 - 18:52
Posts: 538
Location: US
ZozzV6 wrote:

I like the way ZozzV6 did his L2 with the gradient. I was able to do something ‘similar’ on my M1 without much experience. The burnt orange going towards the torch end just seems fitting.

My miniature knock off. If I did it again I think I could prevent the bezel (it’s super THIN) from becoming too brown with a little more caution.

will34
will34's picture
Offline
Last seen: 8 hours 15 min ago
Joined: 12/18/2012 - 00:12
Posts: 3402

Has anyone tried XP-L HI in this host?

How’s the beam?

XXX-Man
XXX-Man's picture
Offline
Last seen: 8 hours 16 min ago
Joined: 07/02/2016 - 04:50
Posts: 634
Location: Zagreb, Croatia

will34 wrote:
Has anyone tried XP-L HI in this host?

I did, well sort of…

I have XP-L HI in old version with tail clicky. It shoud be comparable.

"With the first link, the chain is forged. The first speech censured...the first thought forbidden...the first freedom denied – chains us all, irrevocably."

My reviews:

Sofirn SF36 /// Thorfire VG10S /// Sofirn C8F

XXX-Man
XXX-Man's picture
Offline
Last seen: 8 hours 16 min ago
Joined: 07/02/2016 - 04:50
Posts: 634
Location: Zagreb, Croatia


Old C8F with XP-L HI V3 3C left, new C8F with XP-L right

"With the first link, the chain is forged. The first speech censured...the first thought forbidden...the first freedom denied – chains us all, irrevocably."

My reviews:

Sofirn SF36 /// Thorfire VG10S /// Sofirn C8F

will34
will34's picture
Offline
Last seen: 8 hours 15 min ago
Joined: 12/18/2012 - 00:12
Posts: 3402

That looks great! Host ordered Smile

teacher
teacher's picture
Offline
Last seen: 1 hour 12 min ago
Joined: 02/23/2016 - 19:04
Posts: 6149
Location: NE & SW Alabama

What is a good driver to use with the C8F host?

Should I order one from Sofirn or would Richard at Mountain have something suitable…… or somewhere else?

Thank’s in advance for any info.

      You never know how a horse will pull until you hook him up to a heavy load. / Paul "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 /\ LED Tint Picture /\ Xlamp size chart /\ BatteryU                   Flashaholic? Need Professional Help???   wink   /\ TheOriginal /\ TAB /\ LightSearch /\ BatterySearch /\ 14500's /\ DiCal                                                       

Zappaman
Zappaman's picture
Offline
Last seen: 2 days 14 hours ago
Joined: 01/01/2018 - 23:27
Posts: 265
Location: Kansas

I was wondering the same thing. But I’m looking for a driver that doesn’t have multiple modes (so I can use Lexel’s rear pressure switch mods with it on my hunting rig).

ZappaMan

gchart
gchart's picture
Offline
Last seen: 2 hours 56 min ago
Joined: 03/19/2016 - 11:57
Posts: 1128
Location: Central IL

I think Sofirn sells their driver but if you’re looking for serious output, you might grab Richards FET+1. There are a couple e-switch firmware options including the new popular D4 firmware that ships on the Emisar D4 from Hank and written by Tom E and ToyKeeper.

thijsco19
Offline
Last seen: 57 min 4 sec ago
Joined: 12/14/2012 - 16:18
Posts: 1241
Location: Nearby Rotterdam, the Netherlands

Is it possible to bore the battery tube out to fit a 21700.

Just noticed this interesting triple.

MtnDon
MtnDon's picture
Offline
Last seen: 24 min 34 sec ago
Joined: 08/27/2015 - 18:25
Posts: 1922
Location: Expatriate Canadian in New Mexico, USA

thijsco19 wrote:
Is it possible to bore the battery tube out to fit a 21700.

Just noticed this interesting triple.

Not at all. The tube is only 22.69 mm diameter at the tail end and that is including the cut thread depth. 18.88 mm ID on mine.

MtnDon
MtnDon's picture
Offline
Last seen: 24 min 34 sec ago
Joined: 08/27/2015 - 18:25
Posts: 1922
Location: Expatriate Canadian in New Mexico, USA

Which brings me to ask a question… Has anyone else had a very difficult time in unscrewing the tail cap internal retaining ring/ I have 2 and have not been able to unscrew either tail cap retainer ring.

teacher
teacher's picture
Offline
Last seen: 1 hour 12 min ago
Joined: 02/23/2016 - 19:04
Posts: 6149
Location: NE & SW Alabama

contactcr wrote:
ZozzV6 wrote:
I like the way ZozzV6 did his L2 with the gradient. I was able to do something ‘similar’ on my M1 without much experience. The burnt orange going towards the torch end just seems fitting.

My miniature knock off. If I did it again I think I could prevent the bezel (it’s super THIN) from becoming too brown with a little more caution.


These just look great! How are you doing it, in an oven or with a torch?

I am having trouble understanding how you are getting it to gradually fade from the black to orange. BUT… is sure looks nice. Wink

Any info appreciated….. Thumbs Up

      You never know how a horse will pull until you hook him up to a heavy load. / Paul "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 /\ LED Tint Picture /\ Xlamp size chart /\ BatteryU                   Flashaholic? Need Professional Help???   wink   /\ TheOriginal /\ TAB /\ LightSearch /\ BatterySearch /\ 14500's /\ DiCal                                                       

teacher
teacher's picture
Offline
Last seen: 1 hour 12 min ago
Joined: 02/23/2016 - 19:04
Posts: 6149
Location: NE & SW Alabama

Jerommel wrote:

Use some translucent rings and super glue. Wink

(should take a better picture…)

PS: Magnet is strong enough for this C8 with SS bezel.
Maybe not for the Sofirn triple.


Jerommel wrote:
ZozzV6 wrote:
Nice job. Do you have some pics from assembly how everything fits?
No, but i will make another one, i will take pics and post it.
That looks super nice Jerommel!!! Thumbs Up .
I’ll be looking forward when you have the time to do the next one and post pictures. Smile

      You never know how a horse will pull until you hook him up to a heavy load. / Paul "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 /\ LED Tint Picture /\ Xlamp size chart /\ BatteryU                   Flashaholic? Need Professional Help???   wink   /\ TheOriginal /\ TAB /\ LightSearch /\ BatterySearch /\ 14500's /\ DiCal                                                       

MRsDNF
MRsDNF's picture
Offline
Last seen: 9 hours 17 min ago
Joined: 12/22/2011 - 21:18
Posts: 12373
Location: A light beam away from the missus in the land of Aus.

MtnDon wrote:
Which brings me to ask a question… Has anyone else had a very difficult time in unscrewing the tail cap internal retaining ring/ I have 2 and have not been able to unscrew either tail cap retainer ring.

I dont have one but is it left hand thread?

My current and or voltage measurements are only relevent to anything that I measure.

Budget light hobby proudly sponsored by my Mastercard and unknowingly paid for by a hard working wife. 

djozz said "it came with chinese lettering that is chinese to me".

old4570 said "I'm not an expert , so don't suffer from any such technical restrictions".

Old-Lumens. Highly admired and cherished member of Budget Light Forum. 11.5.2011 - 20.12.16. RIP.

 

teacher
teacher's picture
Offline
Last seen: 1 hour 12 min ago
Joined: 02/23/2016 - 19:04
Posts: 6149
Location: NE & SW Alabama

MRsDNF wrote:
MtnDon wrote:
Which brings me to ask a question… Has anyone else had a very difficult time in unscrewing the tail cap internal retaining ring/ I have 2 and have not been able to unscrew either tail cap retainer ring.
I dont have one but is it left hand thread?
I do remember reading in Dale’s review that it is. Thumbs Up(Or at least I ‘think” I do. Trying to find it now to double check myself)

Take what I said with a grain of salt. I do remember reading it last night…
but can’t find for sure who said it or where….. yet. Facepalm

      You never know how a horse will pull until you hook him up to a heavy load. / Paul "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 /\ LED Tint Picture /\ Xlamp size chart /\ BatteryU                   Flashaholic? Need Professional Help???   wink   /\ TheOriginal /\ TAB /\ LightSearch /\ BatterySearch /\ 14500's /\ DiCal                                                       

djozz
djozz's picture
Offline
Last seen: 5 hours 38 min ago
Joined: 09/07/2012 - 17:04
Posts: 13107
Location: Amsterdam

Confirmative. Reverse threaded. Mine was actually quite loose SillyWink

link to djozz tests 

“I used to think that top environmental problems were biodiversity loss, ecosystem collapse and climate change. I thought that thirty years of good science could address these problems. I was wrong. The top environmental problems are selfishness, greed and apathy, and to deal with these we need a cultural and spiritual transformation. And we scientists don’t know how to do that.”   (Gus Speth)

MtnDon
MtnDon's picture
Offline
Last seen: 24 min 34 sec ago
Joined: 08/27/2015 - 18:25
Posts: 1922
Location: Expatriate Canadian in New Mexico, USA
MRsDNF wrote:
MtnDon wrote:
Which brings me to ask a question… Has anyone else had a very difficult time in unscrewing the tail cap internal retaining ring/ I have 2 and have not been able to unscrew either tail cap retainer ring.
I dont have one but is it left hand thread?

teacher wrote:
I do remember reading in Dale’s review that it is. Thumbs Up(Or at least I ‘think” I do. Trying to find it now to double check myself)

Take what I said with a grain of salt. I do remember reading it last night…
but can’t find for sure who said it or where….. yet. Facepalm

djozz wrote:
Confirmative. Reverse threaded. Mine was actually quite loose SillyWink
Facepalm I thank you for that tidbit of info. I did get it removed just now. My retainer ring was quite snug after all the “loosening” attempts I had done. UghhFacepalm I never dreamed it could be a left hand thread. If I read that I completely forgot it. Thank you all very very much.
Zappaman
Zappaman's picture
Offline
Last seen: 2 days 14 hours ago
Joined: 01/01/2018 - 23:27
Posts: 265
Location: Kansas

gchart wrote:
I think Sofirn sells their driver but if you're looking for serious output, you might grab Richards FET+1. There are a couple e-switch firmware options including the new popular D4 firmware that ships on the Emisar D4 from Hank and written by Tom E and ToyKeeper.

 

Thanks GC! I took the bite last night... two C8F's and 8 XP-LT LEDs from Arrow are on the way. I used your link to the LEDs and man was that easy-- otherwise a needle in a hay stack Ughh I am looking forward to actually using some solder for the first time here. But, the LEDs will be here Tuesday while the C8Fs will take a month (or more?). So I'll have plenty of time to look at the shiny new LEDs Silly

 

I looked at Richard's stuff some and I'm glad to see an option or two. Although I am still navigating my way re. understanding many driver features, the one thing still alluding me is output (and I'm starting to understand that specifications aside- you often have to try it to know). Being a newbie and wanting to get started with something in a working model-- I ordered the newer KDlight C8 (with the XHP50.2 in a 5K @ 2600 Lumen) because THAT driver got great marks on output and efficiency. I wish it didn't have the modes it has (since I'm using it for hunting as mentioned), but for the output I figured it would work well enough to get me started.

 

If Lexel (or someone) gets a HIGH output/efficient driver like the one in the KDLight, but in a single mode (on/off)-- I'll be happy with something like that for ONE of these C8F's. I did see Richard's $20 driver which (I think) would do this (and I LOVE the thermal management I read about on it), so might get one for my final hunting rig (which would end up using ONE of these two C8F's).

 

OK, dumb question (#357 )...  Does the driver for these C8F kits HAVE to have taps for the switch?  Or can it be hard wired in at some point?

ZappaMan

teacher
teacher's picture
Offline
Last seen: 1 hour 12 min ago
Joined: 02/23/2016 - 19:04
Posts: 6149
Location: NE & SW Alabama

gchart wrote:
I think Sofirn sells their driver but if you’re looking for serious output, you might grab Richards FET+1. There are a couple e-switch firmware options including the new popular D4 firmware that ships on the Emisar D4 from Hank and written by Tom E and ToyKeeper.
Thank you gchart for that info…. Smile
Yep… looking for serious output. I think I found it too by following your suggestion to check out Richards FET +1.

      You never know how a horse will pull until you hook him up to a heavy load. / Paul "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 /\ LED Tint Picture /\ Xlamp size chart /\ BatteryU                   Flashaholic? Need Professional Help???   wink   /\ TheOriginal /\ TAB /\ LightSearch /\ BatterySearch /\ 14500's /\ DiCal                                                       

vwpieces
vwpieces's picture
Offline
Last seen: 1 month 1 week ago
Joined: 07/17/2016 - 19:49
Posts: 1971
Location: PA, USA
MtnDon wrote:
Which brings me to ask a question… Has anyone else had a very difficult time in unscrewing the tail cap internal retaining ring/ I have 2 and have not been able to unscrew either tail cap retainer ring.

My first complete C8F has a locked tail cap retaining ring too. Only light that has beat me on disassembly. I kinda gave up but I will give it a GO with Heat a few more times.
Haven’t played with the Hosts yet though…

Edit…

djozz wrote:
Confirmative. Reverse threaded. Mine was actually quite loose SillyWink

OOPS…
Yeah I shoulda tried that. THANKS!

vwpieces
vwpieces's picture
Offline
Last seen: 1 month 1 week ago
Joined: 07/17/2016 - 19:49
Posts: 1971
Location: PA, USA

Well, success…
Got a quality tailcap spring bypass using 20 AWG on my C8F.

Scientist
Scientist's picture
Offline
Last seen: 3 weeks 9 hours ago
Joined: 07/24/2017 - 13:33
Posts: 84
Location: Out standing in my field

Some advice please. I am building using the Sofirn host and driver. I did the same thing contactcr did, leave the wires long and try to stuff them down in the open space below the driver. I can get the thing to turn on but only if I don’t have the tube screwed all the way in. That is, if I have the tail cap on tight and the tube body unscrewed it works. If I snug up the tube body it doesn’t turn on. I guess you will want to know what battery I am using but I am not at home right now so can’t tell you. It is flat top that was pulled from a computer battery. Everything works fine if I just leave the tube loose.

DB Custom
DB Custom's picture
Offline
Last seen: 2 hours 19 min ago
Joined: 01/13/2013 - 22:28
Posts: 18028
Location: Heart of Texas

Is your battery tube on backwards?

Dale

Pages