Haikelite HK04 groupbuy is ALIVE

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Rat_Racer
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M4D M4X wrote:

Tom E wrote:

It’s a little cheaper on FastTech right now over the BG discount – $58 shipped for the XHP50.2 version with the “BLF” code. This is pretty strange that FT has it listed for less then BG’s discount. FT hasn’t been all that competitive lately with BG’s discounts.



 


try the code again Wink 

Ahhh, nice.
Ordered.

M4D M4X
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thanks you guys!

Tom E wrote:

You need to update post #3 though.

Wink

And here is the deal which could be negotiated based on the feeler:

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maybe M4D M4X will return one day, but until then:

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Nicolicous
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Rat_Racer wrote:
M4D M4X wrote:

Tom E wrote:

It’s a little cheaper on FastTech right now over the BG discount – $58 shipped for the XHP50.2 version with the “BLF” code. This is pretty strange that FT has it listed for less then BG’s discount. FT hasn’t been all that competitive lately with BG’s discounts.



 


try the code again Wink 

Ahhh, nice.
Ordered.

fastech had 15% Xmas discount and it’s way cheaper than bangood code.

keep an eye out for fasttech coupon from time to time and u will get good price

Nico -.-

eneoros
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Can anyone confirm that the xhp50.2 5000K will be available soon in BG or it will be only 6500k…

M4D M4X
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i try to get an answer Wink

 

PLEASE NOTE
i do not work in "reviews, deals and codes" for the time being
maybe M4D M4X will return one day, but until then:

THANK YOU FOR YEARS OF YOUR SUPPORT AND FRIENDLY CONTACTS!

eneoros
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M4D M4X wrote:

i try to get an answer Wink


 

Thanks. It will be nice if you do. I tried to ask them through live chat but the agent didn’t understand what i was asking Big Smile

Rat_Racer
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Nicolicous wrote:
Rat_Racer wrote:
M4D M4X wrote:

Tom E wrote:

It’s a little cheaper on FastTech right now over the BG discount – $58 shipped for the XHP50.2 version with the “BLF” code. This is pretty strange that FT has it listed for less then BG’s discount. FT hasn’t been all that competitive lately with BG’s discounts.



 


try the code again Wink 

Ahhh, nice.
Ordered.

fastech had 15% Xmas discount and it’s way cheaper than bangood code.

keep an eye out for fasttech coupon from time to time and u will get good price

Yeah, it would have been nice, but Fasttech only does those type coupons 5-7 times a year. I used to buy a majority of my vape gear from them, before stateside shops became competitive enough on pricing to forgo the shipping times. Was also nice to add knives and flashlights on the order to share the ride.

Rat_Racer
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Well, my order got returned to their warehouse, cancelled and refunded. They claim that the chosen carrier’s “security” wouldn’t allow the light to progress on to the overseas transportation? (sent EPacket)

Tom E
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That's a bummer... Latest update today for mine has been delivered to air transport in Nanning City, China.

CM2010
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Hopefully have mine either tomorrow or Monday.

M4D M4X
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did you order with cells?

PLEASE NOTE
i do not work in "reviews, deals and codes" for the time being
maybe M4D M4X will return one day, but until then:

THANK YOU FOR YEARS OF YOUR SUPPORT AND FRIENDLY CONTACTS!

Rat_Racer
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M4D M4X wrote:

did you order with cells?


no sir.
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Was your flashlight sent by China Post?

CNPost is in bureaucratic training at the highest level.

I have several parcels that are sent from one office to another instead of shipping them to the country of destination.

While other parcels, some contain batteries, which are shipped by SGPost without problems and on time.

CM2010
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Mine just turned up, like the colour it’s like a rusty brown.

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cool !

did you take it outside?

 

 

 

PLEASE NOTE
i do not work in "reviews, deals and codes" for the time being
maybe M4D M4X will return one day, but until then:

THANK YOU FOR YEARS OF YOUR SUPPORT AND FRIENDLY CONTACTS!

CM2010
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Yes, exceeds my expectations.

CM2010
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Anyone know of a holster that will fit?

Tom E
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Rcv'd my XHP50.2 CW version today from BG - overall pretty sweet! I'm a bit disappointed that the switch LED's don't work with Anduril. Didn't try the charging cable yet, but they seem dedicated to the charging circuit.

Using an old set of VTC6's fully charged, I measured 13,090 lumens at start (Tom E #'s) which equals 11,550 lumens Mauka cal'ed. Using new 35E's fully charged I got only slightly less: 12,920 Tom E lumens at start. For throw I measured 74 kcd taken at 5 meters (544 meters).

 

For a holster, dunno, but it's slightly longer than a Q8, and of course slightly narrower. Comes with a decent Anduril manual. I quickly set the top of ramping to max and cranked up the temp regulation. It sure does get hot quick, but again, as expected. The batt springs are simple single ones. Not sure what kind, but probably bypasses will get more amps. With bypasses and a set of VTC5D's, it should do better - might just hit 13K calibrated, least at start.

Di_Joker
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Tom E wrote:
Using an old set of VTC6’s fully charged, I measured 13,090 lumens at start (Tom E #‘s) which equals 11,550 lumens Mauka cal’ed. Using new 35E’s fully charged I got only slightly less: 12,920 Tom E lumens at start.

Can you measure the amount of current that the flashlight takes from the batteries? I am surprised that the 35E’s is coping.

Sorry for my poor english.

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Di_Joker wrote:
Can you measure the amount of current that the flashlight takes from the batteries? I am surprised that the 35E's is coping.

 

No, I can't yet. On Q8's to measure current, I had to mod the rear spring PCB to force the electric flow through one path, then added a heavy gauge wire loop on that path so I could use a amp clamp meter. I don't know how others do amp measurements on these 3 or 4 cell parallel setups, but another thing you can do is test current on just one cell - that's easy to do but would probably result in lower #'s than you get with 3 cells, so not realistic. Another option may be to remove the spring PCB from the housing, and with the battery housing removed, hand hold the PCB in place, using a thick gauge wire for the batt- return, then a clamp meter on that -- I never tried this method though - you might need a couple extra hands for that.

For the 35E's, I'm not surprised at all. I've gotten the same results many times with different lights. The 35E is an outstanding cell, frequently under rated for it's ability to do relatively high amps.

 

Come to think of it, what I've done more recently is use a single cell - the Samsung 30T, measure the lumens with it, and measure the amps. This way I have some legit #'s to compare, and might be close to the results to 3 good 18650 cells, least for the initial turn on.

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Has anyone ordered and received the xpl hi 5000 lumen version? Can comment on the beam profile width, amount of spill and throw distance?

I ordered hxp 50.2 but they sent me a wrong version ( with sst-40). It is 9k lumens with good batteries , the throw distance though is less than 850m. I still need to measure the candela but I can see the hot spot is far less bringht than my haikelite mt40’s which throws to 850meters. Also not crazy about the super wide overall beam – blinds too many people on the side. Wonder how far the xpl-hi version throws.

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I rigged up  a method to measure current on this light. I ordered 4 of the real deal SONY VTC5D's from Walmart (believe it or not), and taped them up as below. I got a 14 AWG wire there and measured with the clamp meter -- it hit 37.1 amps at the peak.

 

Testing on the fully charged, new VTC5D's:

  • 14,620 @start, 12,920 @30 secs (my calib), or 12,900 @start, 11,400 @30 secs (Mauka calib)
  • 79 kcd measured at 5 meters

After taking a close look at the springs, they appear very much like blue springs, BeCu's.

The 37.1 amps was taken with the setup shown below, so couldn't really get a decent compression on the springs - the tape holds things in place so they don't go flying around, but doesn't apply any pressure. I'm quite impressed now with the performance and overall quality of this one. They even used brass screws (which I prefer and modded on Q8's), and the tail PCB is a solid plane of copper under the green, so it maxes the conduction. I scraped off some of the green to solder the wire in place on the top.

Probably could get a bit more out of it with spring bypasses, but might not be much of a gain - the springs look and feel like true BeCu's.

 

The lumens and throw were taken with it full assembled. After the testing of about 60 secs on max, I used those same cells, partially depleted, to measure the amps. So given that, probably would measure higher amps with a better setup and fully charged cells.

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Tom E wrote:

Thank you so much for your research. I read it with interest and received a lot of useful information.

Sorry for my poor english.

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I was curious myself. I may re-do the amp test on fully charged cells and after spring bypasses. With the XHP50.2's, it's a compact monster for sure. Comparatively, I hit about 30 amps on a single GOLISI 26650 in my modded triple XHP50.2 3V Amutorch X9.

For the springs, Martin specs it out in post #2, but I certainly can confirm. I just did a little research on 6063 alum a bit. Most lights are 6061 T6, while this one claims 6063. 6063 is very close to 6061 in terms of hardness, price, thermal characteristics. For a flashlight, I would be most interested in surface hardness, how well it takes anodizing, and of course thermal/electrical conductance. For China sourcing, these variants are just way too close to figure out which is better. I think we would see variety in quality on just 6061 sourcing, so probably the sourcing of the material in regards to tempering (T6, T5, etc. ratings) and how well and precise the alloying elements are controlled, are more important. Of course we all should not assume the specs are accurate.

Lights like the ROT66 claim they are 7075 alum, which has a superior hardness, but lower thermal and electrical conductivity, more corrosive prone, and at a higher cost.

Update:

 I added 20 AWG spring bypasses, and on fully charged VTC5D's I got an initial reading of 15,810 (my calib), 13,980 (maukka calib). It dropped quickly - apparently I didn't set the temp regulation limit high enough. So it got about an 8.1% boost with the bypasses. But additionally to the bypasses, I did some modding at the contact at the screw holes of the PCB to the battery housing. I sanded off the anodizing around the screw holes of the housing, added some solder on the PCB side, all to improve contact surface area. The screws and the immediate exposed copper tracing around the screw holes are the only contacts passing the current from the batt - to the housing.

 Also just fyi, the VTC5D's I got are from here: https://www.walmart.com/ip/Sony-Murata-IMR-18650-VTC5D-2800mAh-25A-Rechargeable-High-Drain-Flat-Top-Battery-4-Pack/675299181. They are hard to find, and in stock, and at a decent price. It's a good deal for this price, I might just order another 4. The only other VTC5D's I had were the black labeled Vapcell's, but the raw SONY's seem to have the batt+ contact better exposed, lacking the extra wrapper. They are flat tops but the type that protrudes, similar to SANYO GA's, and seem to work fine as-is in the HK04.

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I finally was able to get the driver out - used the SP36 technique of soldering a thick wire to the batt+ ground ring, and leveraged some force to pull it out. So no damage, and the glue was the soft silicone type. The switch PCB is an entirely nother problem - tough glued, really bad. The driver design is somewhat unique for a ATtiny85 design. It uses parallel higher powered FET's for the high amp channel, and what looks like a low power FET for the low power channel, usually a single 7135.

 Wish I knew what Anduril config files they used, or if they made/modded their own, they should be accessible somewhere in accordance with the public license. It's disgracefuly really... Their site is still down.

 

I may just try a FET+1 Anduril config file and try it - I can crank up the temp max which this light needs.

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Tom E wrote:

Please tell me, is the stainless steel bezel pressing glass glued or can it be loosened freely?

Sorry for my poor english.

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I didn’t try to remove the bezel so as not to scratch but it seems to me it can be removed as it has the grooves on the inside to use the special took to turn to unscrew it.

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Haikelite and Imalent are under built and over priced in my opinion. I bought the DN 35 and 70 when they first came out and gave them both away. I could not find the switches in the dark to save my life.

Doug S.

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Di_Joker wrote:
Tom E wrote:
Please tell me, is the stainless steel bezel pressing glass glued or can it be loosened freely?

Haven't tried yet. I need to get back to this light.

Tom E
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Tom E wrote:

Di_Joker wrote:
Tom E wrote:
Please tell me, is the stainless steel bezel pressing glass glued or can it be loosened freely?

Haven't tried yet. I need to get back to this light.

Oh, sorry, just got to this. I kind of messed up my HK04 a little:

  • Nasty scratch by the switch
  • in trying to get the switch PCB out, broke it, damaging one of the 2 LED's. It's glued badly - worse I've seen on a switch

So got frustrated with it and set it aside. But yesterday, I got back to it and programmed my latest Anduril in it, using it as is.

 

The bezel unscrews easily by hand, least for me - didn't need a tool. The stack is:

  • SS bezel
  • flat hard plastic o-ring
  • glass
  • soft o-ring
  • reflector

 

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