https://streamja.com/embed/Adk6
Does everyone understand that the battery tube is 2S4P? These are 6v leds so you can run 2 cells in series, 4 cells in series, 6 cells in series or 8 cells in series. The more cells you use the less load on each cell.
It does not use a battery carrier so you have to use button top cells. Kind of like the Q8 battery design, just twice as long.
We don’t know what driver it has but looking at the video above, we can see that it ramps up too High and then a double click to Turbo. This is reminiscent of NarsilM. There’s a good chance they simply adapted the MT09R driver over to this light since they already have it made and it can handle that much power. I don’t know for sure though, they could have always built a new driver from scratch in order to save money.
I checked with Texas_Ace and he confirmed that he had no involvement in this light.
As I write this it seems this light was removed from the Taobao website.
I’ll post a SST-70 output graph from Djozz
If the claimed output is 17000 lumen that equates to 4250 lumen each. According to Djozzs test the leds barely put out 4400 and that is without any optical losses.
In a flashlight where you can expect a 25–30 loss, let’s be generous and say 25%, you get 3,300 lumen each. Times 4 would be 13,200 lumen and this is using a FET driver. So they are definitely over rating the output.
This would also be a case where it’s drawing about 8A@8v, so times 4 is 32A@8v or 256 watts! So assuming you loaded up 8 cells, each cell would be putting out 8A on Turbo. I don’t see a reason a high capacity cell wouldn’t work, it may just not give as much output as a high drain cell. If protected cells did fit, it would be borderline if a 7A trip limit would allow for Turbo. If the protected limit is less, like 3A or 5A, Turbo would probably trip the circuit.
Here is a HT70 picture from that same thread.
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I’m going to take a guess that Djozz’s test might be closer to real outputs. I’ve got a Pflexpro Cree XP-L V6 that Randy measured at 1352 lumens at 3.8 amps in his integrated sphere. Djozz’s listed that at 1500 on his chart, only about 10% difference. Randy has a professional sphere, Djozz calibrates his from a light source he believes is 550 lumens.
Now whether it’s 17,000 or 13,200 the video shows an impressive amount of output in a hand held light. Head, length, tube girth and weight small enough not to be awkward. My little nit-pick is I’d like to see a wee bit bigger tube using Sanyo NCR20700B 4250mAh 15A for capacity and output with only 20.2mm diameter very close to some fat 18650’s. It’s not an EDC but maybe a walking the dog kind of light.
I don’t know about today, but I looked into Randys setup at PFlexPRO about a year and a half ago and although he has a professional sphere, his is not calibrated with a proper reference source. He sort of guessed to get it calibrated based on many factory lights specs. This is not the way to do it. A lot of folks used this approach in the past and usually ended up with higher results than what we see with a calibrated reference source.
Nowadays Maukka is providing some nice lights to use as a calibration source.
I think Djozz has bought one of those to check his numbers, but he still uses his original reference source in order to maintain consistency with his older tests.
Here is a quote from Djozz’s SST-70 test
This may mean his 4450 lumen peak is a bit high and output may be a bit lower. So I think it’s safe to say the HT70 output is going to be under 13,000 lumen when measured by any sphere using a Maukka calibration light.
Haikelite is no stranger to exaggerated lumen specs.
Still, with an emitter about the size of the xhp35-hd, but with way higher output, it should be pretty impressive.
I’m interested i want 1 in sand ,code please thx.
I own a good number of PflexPro lights and their lumen measurements are a good bit higher than what I measure with the Texas Ace lumen tube calibrated with Maukka lights. However, since Djozz owns a Maukka calibration light, I trust his measurements of this emitter to be pretty accurate.
I wonder how this light will look like (tint and throw) if the domes on the emitters were shaved. Wonder if any manufacturer can reliably do this.
All replied.
Interested in code for this one
I noticed on the first page on the specification table it mentions a 5000k version, is that available?
Thanks!
@FREE ME.
Thanks for the code.
I am sure you are very busy but I can not make a decision until I get an answer about the availability of NW.As I mentioned in post # 27.
I am interested in NW Only. When will that be available and how long is the code good for?
Thanks
These Two Protected cells have about a 20amp cut off. I have Eight of the Protected Panasonic/Sanyo. If they are not too long and If this comes in NW as advertised, then I may find out.
Dec 31. You heard NW model will only be available next month.
Unavailable yet.
Thanks.
Code still valid December 31st?
I will wait. :sunglasses:
Thanks for the code but I will wait for NW.
No, those cells have a 10A limit. When in series it’s still 10A. (Wait, are they saying the protection circuit is set for 20A? I remember seeing these cells a little while back but the protection circuit was set at 10 amp. Maybe they recently upgraded? If so, then 8 of these cells should be able to do 80A before the protection kicks in. Plus these are cheap. I think the 15A Imalents are like $15 each.)
It’s when they are in parallel that you can add up the amperage. So 8 of those would provide 40A 80A. That is plenty for this light.
Do keep in mind that you get the double whammy of extra resistance due to it being a high capacity cell and extra resistance due to the protection circuit.
So 8 high drain, unprotected cells should produce higher output. If your not looking for max output, then those will work fine.
Interested
Jon's protection circuitry used to be 13A, last I seen for the GA cells - I bought as set of 4 of these way back. These newer style/look GA protected cells have been bumped up apparently. Jon @LionWholesale has one of the best PC designs around, and at a decent price - he even spec's the protection IC and FETs right there in the listing.
We were given clues that the UI is a ramping from Peralriver’s video.
It is confirmed to be Narsil found on this website:FREE ME WEBSITE
https://www.1thedeals.com/product/haikelite-ht70-4sst-70-17000lm-cw-narsilm-818650-flashlight/