FW3A, a TLF/BLF EDC flashlight - SST-20 available, coupon codes public

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…

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.

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.

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.

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

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

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

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

I am interested in one as well please, thanks :slight_smile:

Interested. please add me. Thank you.

Interested in the XPL HI

thank you!

Put me down for one please. Thanks

Interested xpl hi. Thank you all for your efforts.

I’m very interested in this!

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. :+1:


My pleasure. :slight_smile: … It will be listed here when it updates again. When that is posted, double check to make sure your on the list then.

I would like 1 please.

Two please.