FW3A mod thread. Post yours!

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lumenzilla
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Ryley wrote:
Another installation for my friend. Lexel aux board with direct power from battery, 2 color led, 1mA. Slightly too bright for this setup, but it still cool anyway.

Cool, I like it! Thumbs Up

pinkpanda3310
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I traded the fw3d I modded for this fw3a. I didn’t know it could pulse till I tried the different modes. Super happy with it Love

sp5it
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Quick question.
I just swapped emitters in mine fw3a from lh351d 4000K cri90 to sst-20 3000K 95cri.
It looks 2x dimmer on turbo than before….
Is it normal, that sst-20 produce less lumens?
Mike

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cabfrank
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SST-20 definitely produces less lumens, but the tint is very nice.

JaredM
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I’d assume that the change from 4000K to 3000K is making most of the visual difference. The Samsung emitters definitely produce more output, but not 2x more.

cabfrank
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I was thinking 2x seemed like a lot too. I know there is a big difference between the XP-L and SST emitters.

sp5it
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Thanks, it seems that is normal.
Tint and colour reproduction of sst-20 is really nice. I can live with less lumens Smile
Mike

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cabfrank
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I agree with you. At first, I was very disappointed in the output, and the heat a little bit, but after getting used to it, I really like it. The tint is great, and honestly, it is not nearly as bright as the XP-L, but still plenty bright.

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In one of my FW3As, I had to change the o-ring for the button stiffening mod to a larger diameter one. This was because I got accidental activations. It’s been about a week with the new o-ring and, so far, no accidental activations.

Enjoy the light show - LedTed

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Not my mod. A FW4A mule with 12 Samsung LEDs (LH351D?):
https://jc-customflashlights.com/products/fw4a-mule-10-000-lumens

cabfrank
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Wow, that is crazy, 10,000 lumens!

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cabfrank wrote:
Wow, that is crazy, 10,000 lumens!

I wonder how long you can hold it for on max before your hand melds with the aluminium! Silly
pinkpanda3310
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Is there an 18350 cell that can put out that much current?

forsh
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pinkpanda3310 wrote:
Is there an 18350 cell that can put out that much current?

samsung q30 can put out 20amps

sony vts can put out 30amps

irun samsungs in my fw3 and fw1
ive also got 6 sony vts that are great, but nothing that warrents me putting them in

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pinkpanda3310
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You need to look at the listing carefully and read what I wrote carefully - 18350 cell

forsh
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pinkpanda3310 wrote:

You need to look at the listing carefully and read what I wrote carefully – 18350 cell

ah its to early and im only on my 3rd coffee

ok well i use a efest 18350 700mAh battery in one of my convoy s2 , it got full brightness draws about 5 amps, i read its max output is 10 amp

this should be good for about a very very short amount of time on full power

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pinkpanda3310
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If that’s the case I can’t ever see that light reaching 10,000 lm with a short battery.

10,000 lm / 12 leds = 833 lumens per led

According to Texas_Ace’s tests you need more than 1.5amps to reach 800 lumens.

12 leds * 1.5amps = 18 amps

So something capable of 20 amps (the 18650’s forsh mentioned) might see the specified output but not happening with short cells

forsh
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pinkpanda3310 wrote:
If that’s the case I can’t ever see that light reaching 10,000 lm with a short battery.

10,000 lm / 12 leds = 833 lumens per led

According to Texas_Ace’s tests you need more than 1.5amps to reach 800 lumens.

12 leds * 1.5amps = 18 amps

So something capable of 20 amps (the 18650’s forsh mentioned) might see the specified output but not happening with short cells

https://www.orbtronic.com/18350-battery-rechargeable-imr-1200mah-high-dr... 15amp for 5 seconds on and 30 seconds off,

yeah like you say pal, 18350 is proberly not possible drawing 20 amps, and really who wants to have a torch that can go full power for 1 seconds, unless your making some kind of strobe that blinks twice a minuite!

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forsh
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9-DE085-D7-23-E5-4-B5-B-867-F-BF0-B71-C2-FD55 BD127-A0-D-BA54-492-A-9-A22-F340-FD435185

Plastic ring mod

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Ok, that was really weird…….. I was looking at your photo forsch and rolling my fw3a (normal) between my two hands thinking, suddenly it came on and off a few times, the started doing alsorts of weird flashes! It wouldn’t switch off and i had to unscrew the head to stop it……..
I have no idea why – maybe it was jealous! Silly

forsh
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G0OSE wrote:
Ok, that was really weird…….. I was looking at your photo forsch and rolling my fw3a (normal) between my two hands thinking, suddenly it came on and off a few times, the started doing alsorts of weird flashes! It wouldn’t switch off and i had to unscrew the head to stop it…….. I have no idea why – maybe it was jealous! Silly

Maybe some kind of cpu freeze or something

The plastic ring is something from b&q type shop for 10 pence (cent)
Water pipe washer , 22mm 24mm outside , I had to sand the inside a bit
But it works so well
It maybe needs cleaning a bit and the colour isn’t great , I’d like blue or green or something

But it works for now

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hcanning
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pinkpanda3310 wrote:
If that’s the case I can’t ever see that light reaching 10,000 lm with a short battery.

10,000 lm / 12 leds = 833 lumens per led

According to Texas_Ace’s tests you need more than 1.5amps to reach 800 lumens.

12 leds * 1.5amps = 18 amps

So something capable of 20 amps (the 18650’s forsh mentioned) might see the specified output but not happening with short cells

I have a Keepower 1200mAh 18350 that I managed to suck 14A from. So I guess it’s possible with an even better battery. For about 7 seconds until it’s empty Silly

pinkpanda3310
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See forsh’s post #1279 (5 seconds on 30 seconds off).

Also I think 20 amps is the minimum requirement to reach 10,000 lumens.

I’ve just jumped on this because that guy must be measuring in Chinese lumens. Theoretically plausible but technologically not possible.

forsh
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pinkpanda3310 wrote:
See forsh’s post #1279 (5 seconds on 30 seconds off).

Also I think 20 amps is the minimum requirement to reach 10,000 lumens.

I’ve just jumped on this because that guy must be measuring in Chinese lumens. Theoretically plausible but technologically not possible.

chinese lumens are the best lumens, i had a torch from wish, that had 90000 lumens! it was super bright and only drawing 5amps

im not sure how they measure the lumens, maybe look at the light and say, yeah that about a million lumens!

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Got a 2nd FW3A from a generous BLF member here. Previous owner had tried to customize the body but ended up hitting a dead end. Mainly the center body had been stripped of anno & had an uneven finish. I reworked it with various grades of micromesh from 1500 up to 12000. Now it’s more of a satin polished finish. I originally planned to do a twisted scoring, but I’ve found the aluminum is rather soft and wouldn’t likely hold up to an even scoring. Later on, I may give it a go with a Dremel. I’m tempted to try a finish like I did on this vintage Pilot mechanical pencil:


(original body was a smooth satin finish metal alloy)

Installed a GITD optic surround, a lanyard ring, and an o-ring for added grip. The lanyard ring doesn’t anchor down, spinning freely. Tried using a few different o-rings, but it doesn’t work (they get squished out). Looks like a special washer may be called for. Some photos, with the first two showing this FW3A next to my first one.




FWIW, no beam shots but FW3A #1 is Cree XP-L HI 3D, #2 is Nichia 4000k 219C.

forsh
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Would soda blasting take the ano off ?

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forsh wrote:
Would soda blasting take the ano off ?
Probably, but I don’t have the equipment or space to do that. I am going to try a few powdered abrasives hand scrubbed.
forsh
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I’ve got a soda blaster at work , maybe I’ll try it later today , I quite like a alu finnish

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grin
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Draino and hot water will remove the ano in under a minute

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It seems like 219B mod is one of the popular mods. I have got some questions about the firmware. For 219B, I understand that fw3a-nofet or fw3a-219 should be used to limit the current for the Turbo mode.

The latest version I can find at this time is 2020-03-18 for both of them. I have been trying to find the information about the revisions and the histories, but I have not found them so far. I am sure the way I am looking is not good. Do you know much about the version of 2020-03-18? Which version do you use? My thinking is to go with the latest.

Also, what is the maximum current for fw3a-219? I read somewhere like FET is limited to 50% or 60%.

Thanks.

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