FW3A, a TLF/BLF EDC flashlight - interest list closed, check your inbox for coupon code

11236 posts / 0 new
Last post
iamlucky13
Offline
Last seen: 5 hours 47 min ago
Joined: 06/22/2018 - 09:18
Posts: 436
Location: USA

It definitely seems worth trying a swap, given the low cost a triple board with SST-20’s can be had for. I’m hoping to compare it LH351D’s and SST-20’s and decide which I like better.

dotBLF
Offline
Last seen: 1 day 8 hours ago
Joined: 04/19/2016 - 19:00
Posts: 55
Location: MA, USA

Hi I would like to sign up for the buy if I still can. I’m in for an XP-L HI and a Samsung LHD!

Thanks!!

zak.wilson
Offline
Last seen: 3 hours 58 min ago
Joined: 09/29/2014 - 14:27
Posts: 794

I think the SST-20 is a great option for a future update. I will definitely put SST-20s in one of mine.

It wasn’t yet known to this community when voting on the emitters for the FW3A took place, and trying to add an additional option now would only delay production.

Ceilingbounce – flashlight testing and runtime graphs for Android

BlueSwordM
BlueSwordM's picture
Offline
Last seen: 4 hours 45 min ago
Joined: 11/29/2017 - 12:34
Posts: 4217
Location: Canada

The SST-20s 4000k are easier to get than the LH351Ds.

So unless the LH351Ds are of a good chromacity bin, going with SST-20s would be great for even better color rendition, and more throw.

My very own high current Beryllium Copper springs: http://budgetlightforum.com/node/64047
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

JasonWW
JasonWW's picture
Offline
Last seen: 17 min 49 sec ago
Joined: 10/22/2016 - 11:41
Posts: 10603
Location: Houston Texas

BlueSwordM wrote:
The SST-20s 4000k are easier to get than the LH351Ds.

So unless the LH351Ds are of a good chromacity bin, going with SST-20s would be great for even better color rendition, and more throw.


Why would they give more throw?
BlueSwordM
BlueSwordM's picture
Offline
Last seen: 4 hours 45 min ago
Joined: 11/29/2017 - 12:34
Posts: 4217
Location: Canada

Much smaller die area than the LH351D, and even optical emission area is smaller than the XP-L HI.

My very own high current Beryllium Copper springs: http://budgetlightforum.com/node/64047
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

JasonWW
JasonWW's picture
Offline
Last seen: 17 min 49 sec ago
Joined: 10/22/2016 - 11:41
Posts: 10603
Location: Houston Texas

BlueSwordM wrote:
Much smaller die area than the LH351D, and even optical emission area is smaller than the XP-L HI.

So they are also less bright?
BlueSwordM
BlueSwordM's picture
Offline
Last seen: 4 hours 45 min ago
Joined: 11/29/2017 - 12:34
Posts: 4217
Location: Canada

@JasonWW

Q2 tint bin LH351D currently available: 340 lumens at 1050mA(minimum)
J5 tint bin SST-20 4000k(highest one available): 279lm at 1000mA, 292lm at 1050mA(minimum)

So, with the current Q2 tint bin, the LH351D is 16,5% more efficient.

With the higher R2 tint bin being available for 4 reel orders: 360 lumens at 1050mA(minimum)

With the R2 tint bin, the LH351D is 23,5% more efficient than the SST-20.

So, yeah, less overall light will be emitted.

However, since this is an EDC light, the LH351D will be much more floody, and will require higher power levels to be usable outdoors.

The SST-20 would be a better overall choice in terms of usability.

My very own high current Beryllium Copper springs: http://budgetlightforum.com/node/64047
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

DB Custom
DB Custom's picture
Offline
Last seen: 1 day 10 hours ago
Joined: 01/13/2013 - 22:28
Posts: 19870
Location: Heart of Texas

That all sounds good on paper but my Ti/Cu scratch built EDC uses a Carclo quad optic with Samsung LH351D 80 CRI 5000K (U6 power bin) emitters and works quite nicely outdoors in the big wide open area’s we have here. It’s certainly no thrower, but it’s not lacking either, even run on an 18500 cell. Wink Beam profile is sweet, sans the Cree artifacts, with a defined fat hot spot that I’ve found very much to my liking.

BlueSwordM
BlueSwordM's picture
Offline
Last seen: 4 hours 45 min ago
Joined: 11/29/2017 - 12:34
Posts: 4217
Location: Canada

At what level are you running the light Smile ?

My very own high current Beryllium Copper springs: http://budgetlightforum.com/node/64047
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

cabfrank
Offline
Last seen: 36 min 52 sec ago
Joined: 11/19/2010 - 17:25
Posts: 2708
Location: healdsburg, california usa earth

Max. Always Max. Wink

JasonWW
JasonWW's picture
Offline
Last seen: 17 min 49 sec ago
Joined: 10/22/2016 - 11:41
Posts: 10603
Location: Houston Texas

BlueSwordM wrote:
@JasonWW

Q2 tint bin LH351D currently available: 340 lumens at 1050mA(minimum)
J5 tint bin SST-20 4000k(highest one available): 279lm at 1000mA, 292lm at 1050mA(minimum)

So, with the current Q2 tint bin, the LH351D is 16,5% more efficient.

With the higher R2 tint bin being available for 4 reel orders: 360 lumens at 1050mA(minimum)

With the R2 tint bin, the LH351D is 23,5% more efficient than the SST-20.

So, yeah, less overall light will be emitted.

However, since this is an EDC light, the LH351D will be much more floody, and will require higher power levels to be usable outdoors.

The SST-20 would be a better overall choice in terms of usability.


I like the LH351D because it gives nice NW color while still giving similar output to xpl or xml2.

So the SST-20 is a bit more similar in die size and output to the XP-G3 or 219C?

ToyKeeper
ToyKeeper's picture
Offline
Last seen: 2 hours 29 min ago
Joined: 01/12/2013 - 14:40
Posts: 9312
Location: (469219) 2016 HO3
cabfrank wrote:
BlueSwordM wrote:
DB Custom wrote:
my Ti/Cu scratch built EDC uses a Carclo quad optic with Samsung LH351D 80 CRI 5000K (U6 power bin) emitters and works quite nicely … Beam profile is sweet, sans the Cree artifacts, with a defined fat hot spot that I’ve found very much to my liking.

At what level are you running the light Smile ?

Max. Always Max. Wink

From what I hear, it’s not always max. It’s frequently at lower levels, especially candle mode. A lot of people care about the tint in low modes, not just turbo. And unfortunately, a lot of emitters have their worst tints at low power levels. The color temperature and tint can shift quite a bit between a low mode and a high mode.

That’s why I didn’t like the SST-20 4000K 95CRI emitters I tried. The tint was okay on high modes, but I almost never use those… and at the lower levels I actually use, it was a long way from white.

KawiBoy1428
KawiBoy1428's picture
Online
Last seen: 1 min 6 sec ago
Joined: 04/11/2014 - 18:05
Posts: 3487
Location: The Motor City

My Triple SST-20 5000k isn’t any better, unless you like yellow, even in Turbo side by side with my XP-L HI 5000k triple (same) optics, the yellow stands out…

KB1428 “Live Life WOT”

DB Custom
DB Custom's picture
Offline
Last seen: 1 day 10 hours ago
Joined: 01/13/2013 - 22:28
Posts: 19870
Location: Heart of Texas

I have my Ti/Cu DBC-04 set up to always start at the lowest level, I use it according to the need. Very seldom use Max, but sometimes. Max is around 3500 lumens on the 18500.

Level 1 or 2 get’s used in the house a lot, outside I seem to go straight to 4 or 5 out of 7.

zak.wilson
Offline
Last seen: 3 hours 58 min ago
Joined: 09/29/2014 - 14:27
Posts: 794

The SST-20s I got from Kaidomain (FB4 tint bin) are kind of yellow at low power and not really my favorite tint at any power level, but I just got done reviewing a light that came with an XP-G2 that I think was a 5S tint bin so I’ll take it.

I’d put more emphasis on getting FA4 or FA1 tint if I was buying a bunch of SST-20s than I would on flux bin. I have a suspicion that sometimes non-green tint and the highest flux bins are incompatible, because adding more 555nm has a strong tendency to increase lm/W, being the peak of human visual sensitivity.

Ceilingbounce – flashlight testing and runtime graphs for Android

Agro
Online
Last seen: 1 min 5 sec ago
Joined: 05/14/2017 - 11:16
Posts: 3997
Location: Ślōnsk

BlueSwordM wrote:
@JasonWW

Q2 tint bin LH351D currently available: 340 lumens at 1050mA(minimum)
J5 tint bin SST-20 4000k(highest one available): 279lm at 1000mA, 292lm at 1050mA(minimum)

So, with the current Q2 tint bin, the LH351D is 16,5% more efficient.

With the higher R2 tint bin being available for 4 reel orders: 360 lumens at 1050mA(minimum)

With the R2 tint bin, the LH351D is 23,5% more efficient than the SST-20.

So, yeah, less overall light will be emitted.


The peak current of FW3A won’t be 1.05A per emitter but significantly more. At higher currents the efficiency gap will be larger when comparing both LEDs at the same current.
Furthermore SST-20 actually has lower Vf than LH351D so it will draw more current. This will make the efficiency gap yet another bit larger, but it will reduce the brightness gap slightly.
DrinkingJar
Offline
Last seen: 2 weeks 1 day ago
Joined: 01/16/2019 - 21:08
Posts: 2
Location: Ontario, Canada

I’m am interested in one, please add me to the list.

contactcr
Online
Last seen: 11 min 24 sec ago
Joined: 05/19/2017 - 18:52
Posts: 1709
Location: US
Agro wrote:
The peak current of FW3A won’t be 1.05A per emitter but significantly more. At higher currents the efficiency gap will be larger when comparing both LEDs at the same current. Furthermore SST-20 actually has lower Vf than LH351D so it will draw more current. This will make the efficiency gap yet another bit larger, but it will reduce the brightness gap slightly.

vF a lot closer than you think when comparing both in high CRI. The LH351D has much higher vF in the 70CRI model but the 90CRI is a different beast.

From maukka:

LH351D 5000K 90CRI @ 4A
3.4x vF
1189 lm

SST-20 4000K 95CRI @ 4A
864 lm
3.43 vF

diesel72
Offline
Last seen: 1 week 5 days ago
Joined: 01/01/2019 - 22:08
Posts: 7
Location: Michigan

I would like one, in XPL-HI if I have a choice. If no choice, I’ll take whatever is made.

bluereidon
bluereidon's picture
Offline
Last seen: 2 weeks 2 days ago
Joined: 01/19/2019 - 06:34
Posts: 81
Location: Bulgaria

Put me in the list for one with LH351D 4000K 90CRI emitter

pb00
Offline
Last seen: 3 months 2 days ago
Joined: 01/18/2019 - 22:20
Posts: 6
Location: Wheaton, MD

I am interested in one as well please, thanks Smile

Smokecutter
Smokecutter's picture
Offline
Last seen: 1 week 1 day ago
Joined: 04/28/2018 - 22:51
Posts: 11
Location: United States

Interested. please add me. Thank you.

lotrbfme
lotrbfme's picture
Offline
Last seen: 5 hours 55 min ago
Joined: 12/05/2018 - 18:03
Posts: 208
Location: FL

Interested in the XPL HI

thank you!

olivedrab
olivedrab's picture
Offline
Last seen: 1 day 23 hours ago
Joined: 12/16/2015 - 05:39
Posts: 175
Location: The Pearl of the Orient Seas

Put me down for one please. Thanks

scdaf
Offline
Last seen: 1 day 8 hours ago
Joined: 11/01/2011 - 18:52
Posts: 324
Location: United States

Interested xpl hi. Thank you all for your efforts.

PreacherCasy
Offline
Last seen: 1 day 10 hours ago
Joined: 01/22/2019 - 07:01
Posts: 7

I’m very interested in this!

dealgrabber2002
Offline
Last seen: 41 min 49 sec ago
Joined: 06/20/2014 - 23:51
Posts: 562
Location: California

Hello, I requested to be on the list for one on 1/7/19 but do not see my name. I just want to make sure I am in with this awesome group buy.

teacher
teacher's picture
Online
Last seen: 4 min 5 sec ago
Joined: 02/23/2016 - 19:04
Posts: 8801
Location: NE & SW Alabama

dealgrabber2002 wrote:
Hello, I requested to be on the list for one on 1/7/19 but do not see my name. I just want to make sure I am in with this awesome group buy.
Give it some time. The list has not been updated yet. You should be in there when it is. Thumbs Up

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 

 

                                             

dealgrabber2002
Offline
Last seen: 41 min 49 sec ago
Joined: 06/20/2014 - 23:51
Posts: 562
Location: California
teacher wrote:
Give it some time. The list has not been updated yet. You should be in there when it is. Thumbs Up

Thanks!

Pages