ONLINE! Haikelite HK4S groupbuy - Quad SST20/40 26650/21700 flashlight

SST-40 Brown please!

Yeah, you’re right. With the SST40 it has a nice range and due to the OP-reflector a nice side illumination.

Unfortunately the NS43 is no longer available in 5000K. For me it is the perfect lamp on the bike, also because it can dissipate the heat well.

sst-40, brown, 5000k

would like more details on the UI please

Interested, waiting for details

Interested

Interested in two.

Interested

interested but will wait for more details

Interested

Deal is online!

i sent the mails to all people on the list also

[NEW MODEL GROUPBUY]
HAIKELITE HK4S 4x SST20 4000LM 650M
Super Bright Long Range EDC Flashlight Type-C USB Rechargeable 21700 26650 Powerful LED Torch

My Code: :MHK4S1
Your price: $38.99


[NEW MODEL GROUPBUY]
HAIKELITE HK4S 4x SST40 7000LM 500M
Ultra Bright EDC Flashlight Type-C Quick Charge USB Rechargeabl Mini LED Torch 21700/26650

My Code: :MHK4ST40
Your price: $41.99

Has this got anduril or a ramping UI?

Just checked, yes it is anduril

Thanks for the codes. M4D M4X what is the UI of this flashlight. It is Anduril based or not? There is no such information in BG listing.



yes - its with Anduril
(banggood added to the title now)

Unfortunately there is no beamshot, neither here nor on the sales page.

I just received a “delivery delay notification” from bangood. Are there any information available, when they will restock the HK4s again?

Now they list also using the 26800 size battery. Any confirmation of this?

Just ordered the last brown SST-40 5000K in stock

Just received the HK4S awhile ago.

Apparently this is a 26800 flashlight.
By default, it comes with a short tailspring (really long body tube).
Using unprotected flat-top 21700 battery (eg. Vapcell G50 21700), or even a longer protected 26650 (Keeppower), the tailcap spring will not make contact at all with the flashlight.

With the default short tailspring, I could only have the flashlight make contact when I use a protected 21700 battery (I have one from Rofis MR30).
(unfortunately, I do not have a 26800 battery. I do have a 26700 LiFePO4 battery which I bought for ‘testing’ only — and just like the unprotected 21700 batteries, it won’t make contact with the default short tailspring)

Fortunately, the accessories package does include a longer tailspring, which means the short tailspring has to be pried out (I thought it was difficult to pry, but it pried out easily), then replace with the long tailspring. Now the flashlight works with regular unprotected/protected 26650 batteries or flat-top 21700 batteries. Now I wonder if just plugging in the long tailspring in the tailcap will have good contact resistance?

using these 4 different batteries to test if they will make contact with the HK4S body tube
(protected 21700, unprotected 21700, protected 26650, unprotected 26650)

notice there is a big clearance/gap when using unprotected 21700 & unprotected 26650 (short tailspring will not make contact on the battery at all)

using a protected 21700 will make contact with the short tailspring, there is still some clearance space (will probably fit the 26800 battery type, mentioned in the included manual)

difference of the default short and long tailspring (default short tailspring installed; long tailspring included in accessories pack)

forgot to mention, the positive side (head/driver) is a big copper button instead of a spring.

~

other note: it uses a somewhat old version of Anduril:

  • no 15-clicks version check
  • no factory reset
  • has manual/automatic memory mode toggle (estimated Anduril version is 2019-06-02)
  • has 2-level brightness when in lockout mode

Copper button? That's potentially bad - copper oxides quick if untreated, or scratched up. Hope it's brass, not copper, as they usually are.

I'm not surprised about old Anduril, but the 26800 thing is a surprise, guess for Martin too.

I'll add a bypass on the long spring, then it's good to go. I've popped/pried out many of these type of springs before.