(Mar 2023) 9SSQ55 38000lm 221700 Flashlight Group Buy - New LED model. >>> $71.97
(V2) 9SFQ60.3 32000lm 221700 Flashlight Group Buy
(V1) 9SFQ55 28000lm 221700 Flashlight Group Buy - ENDED
Group Buy Price: from $80.22 (usual $106.95)
Freeme's Exclusive Coupon: 1TDNEW
LED: 9xSFQ55 5700k
Max output: 28,000lm
Battery: unprotected 2x 21700 button top (NS73V1 need to use the battery current 40A)
Lens: Glass with anti-reﬂective coating
Body: Aluminum with Type III hard-coat anodizing
Swtich: Tail switch
Weight: 338g without cells
Dimensions: 58mm head x215mm length
Function: 1. Reverse polarity protection
3.low voltage warn
Modes: M-L-M-H,triple clicks turbo
I really like 2x series flashlights. They are very practical. This flashlight looks very interesting. However, as much as I like Nightwatch for their excellent heat sinking and pushing the envelope in raw performance, their driver efficiency sucks. Their flashlights are meant as toys because of the low driver efficiency. I wish they start making regulated buck / boost drivers.
ive never owned a night watch, good to know about the heat sinking and poor driver efficiency. Maybe bc this one is 2x series it will be a different type of driver (buck?), or maybe it will be easy to find a replacement driver bc it's running off of a tailswitch, maybe mechanical?
I really want to give this light a try but the numbers are not coming out right. Nightwatch has a single 21700 triple SFQ55, Nightwatch NSX3. It’s stats are for three 5000k SFQ55’s are 9100 lumens at 33 amps. This LED comes in 3 and 6 volts varieties. To run 9 SFQ55 LED’s in the 6 volt style will take 50 amps to get around 28,000 lumens.
This chart suggest we might be at 60 amps with 2-21700 in series to get that output.