imaplent dt70 and dt35, why no one mention anything here

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radiancez567
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Nice video comparison, KG_Tuning

dchomak
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JasonWW wrote:
Here is a second DN70 that is malfunctioning. It goes to strobe instead of 3800lm.

https://youtu.be/oG3_DyZ2TlY

I think the problem here is the battery.

If you watch the video, at some points, voltage readings pop up on the display. When he first switches to 2500 lumen it is 3.51V and sinking fast. A moment later it is 3.48V At 3800 Lumen it would be even less as the load would probably be twice that of 2500.

dchomak
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I had to download the youtube video and afterwards I was able to capture this still from the video. At the point when this light was in “3800” lumen mode but was in strobe mode, the voltage was only 3.36V

JasonWW
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Are you telling us this information or telling the guy in the video?

Tell him and if that fixes the issue, come back and tell us. Thumbs Up

My Convoy L6 thread with XHP70.2, Texas Avenger FET driver, Narsil v1.2 ramping firmware (old), lighted side switch and cut down SMO reflector. Lots of amp draws on stock driver as well. 

My Supfire L5-S thread with XHP70, Texas Avenger FET driver, NarsilM v1.0 ramping firmware and lighted side switch. My mini L6! 

9 NarsilM user videos for BLF Q8, GT, GT Mini and ROT66

Texas_Ace BLF Calibrated Lumen tube

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KG_Tuning
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My voltage reading is usually 15v out on my DT70, if it says 3.95 on the torch the batteries will read 4.10 in my charger.

My 4K Flashlight reviews (DX80, X80-GT, X45vn, DT70, MF04 etc) - https://www.youtube.com/c/FLASHAHOLICS_GB

cclight
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On my DN70 the reading is 0.18V below the right value in the whole range except at above 4V, where it’s 0.15V below. Fortunately the error is nearly constant so it’s easy to correct. I checked with an Agilent voltmeter.

The voltage reading is very important because high/turbo output drops significantly when the (real) voltage drops to about 3.7V. This is typical of high output flashlights, not only the Imalent ones. The voltage measurement is a very nice feature of these flashlights.

On my DN35 the reading is 0.07V above at mid-range. I didn’t have the opportunity of checking at other values yet.

dchomak
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JasonWW wrote:
Are you telling us this information or telling the guy in the video?

Tell him and if that fixes the issue, come back and tell us. Thumbs Up

I am telling you guys Wink

The title of this thread suggests that these Imalent lights are being shunned, for whatever reason, on this site.
I just want anybody reading this thread to be aware that this video could be unreliable.

To those that measure voltage with the light, I would guess that could be done only when it is on?
How does the voltage compare to a DMM with the light on in the lowest possible mode.
Also don’t forget that the voltage reading in the light is during a load AND includes voltage drops due to contact resistance etc.

I have an interest in this thread is because I would very much like to buy a DT70 and I am trying to discern whether or not I should.

Terry White
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I have 4 Imalent's now... well 3, I gifted one of them.

I have both the DN35 and the DN70 also have the DM21T.

I take the DN70 almost everywhere I go and , all three get a good amount of use. So far I had only a very minor problem with my first DN35 that was fixed in just a few seconds no tools required.

I think they are great lights. For the size you get a huge amount of light, and yes the Turbo even pretty short but it was never designed to hold that setting for a long period of time.

They company is still very young and they are going to have issues fro time to time. All new lights usually have their fair share of issues.I can name some major brands that have been around a long time that have just totally embarrassed themselves. No need to call them out because it was issues no one expected based on calculations. The issues came up in real world use.

If I begin to have problems with any of the three Imalent light I have I will of course post them but, so far I have none to post.

I do however have one thing to post about Imalent. After testing, I suggested including a spare USB cover. I got an email not long ago stating that they agreed and that future batches would be shipped with a spare USB cover. Not sure when that will begin but, my point is that when I contacted them they seemed pretty open to suggestions.

I will updated if anything changes.

Terry White

Skype terrywhite1@live.com

JasonWW
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dchomak wrote:
JasonWW wrote:
Are you telling us this information or telling the guy in the video?

Tell him and if that fixes the issue, come back and tell us. Thumbs Up

I am telling you guys Wink

The title of this thread suggests that these Imalent lights are being shunned, for whatever reason, on this site.
I just want anybody reading this thread to be aware that this video could be unreliable.


Some people avoid them because they have a high rate of defects compared to other brands. The worst part is if you do get unlucky and receive a bad light, Imalent will not take care of their customers. You may as well throw it in the garbage and buy another brand because it’s a total loss.

My Convoy L6 thread with XHP70.2, Texas Avenger FET driver, Narsil v1.2 ramping firmware (old), lighted side switch and cut down SMO reflector. Lots of amp draws on stock driver as well. 

My Supfire L5-S thread with XHP70, Texas Avenger FET driver, NarsilM v1.0 ramping firmware and lighted side switch. My mini L6! 

9 NarsilM user videos for BLF Q8, GT, GT Mini and ROT66

Texas_Ace BLF Calibrated Lumen tube

Maukka Calibration Lights for DIY Lumen Measuring Devices

tim70
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Terry White wrote:

I have 4 Imalent’s now… well 3, I gifted one of them.


I have both the DN35 and the DN70 also have the DM21T.


I take the DN70 almost everywhere I go and , all three get a good amount of use. So far I had only a very minor problem with my first DN35 that was fixed in just a few seconds no tools required.


I think they are great lights. For the size you get a huge amount of light, and yes the Turbo even pretty short but it was never designed to hold that setting for a long period of time.


They company is still very young and they are going to have issues fro time to time. All new lights usually have their fair share of issues.I can name some major brands that have been around a long time that have just totally embarrassed themselves. No need to call them out because it was issues no one expected based on calculations. The issues came up in real world use.


If I begin to have problems with any of the three Imalent light I have I will of course post them but, so far I have none to post.


I do however have one thing to post about Imalent. After testing, I suggested including a spare USB cover. I got an email not long ago stating that they agreed and that future batches would be shipped with a spare USB cover. Not sure when that will begin but, my point is that when I contacted them they seemed pretty open to suggestions.


I will updated if anything changes.


+1 Thumbs Up
rizky_p
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I just got my DN70, what a lovely light to hold in hand the size is just perfect and still edc-able. btw this is my first 26650 light now i know why some loves a single cell 26650 flashlight Party

I printed a 18650 slevee so i can use 18650s cell just in case i need it, since i only got 1 26650.

hIKARInoob
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^^^ Wow! Cool you used the same blue colour!

rizky_p
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hIKARInoob wrote:
^^^ Wow! Cool you used the same blue colour!

well it was unintentional, i have that blue by coincidence. Big Smile

The voltage meters is somewhat dissapointing, mine reading 4.05v while the real value should be 4.2v charged using ISDT SC-608 and also confirmed with my multimeter.

cclight
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Yes there’s an error in the voltage reading. Fortunately it’s nearly constant so you can correct it easily. For mine it was 0.15V near full charge and 0.17 at lower voltages, say from 4 downwards.

rizky_p
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i wished that we can offset the value.

cclight wrote:
Yes there’s an error in the voltage reading. Fortunately it’s nearly constant so you can correct it easily. For mine it was 0.15V near full charge and 0.17 at lower voltages, say from 4 downwards.
klrman
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So, what is the word on the DT70?  Are there later batch version that are more reliable?  It's one of the lights I have been eyeing for quite some time now and I am still thinking of getting one.  From what I hear, it is a gamble though if we get a dud.

JasonWW
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I haven’t heard anything about these lights in months. I know they updated the disc springs to coil springs in the DT70 and DT35.

My Convoy L6 thread with XHP70.2, Texas Avenger FET driver, Narsil v1.2 ramping firmware (old), lighted side switch and cut down SMO reflector. Lots of amp draws on stock driver as well. 

My Supfire L5-S thread with XHP70, Texas Avenger FET driver, NarsilM v1.0 ramping firmware and lighted side switch. My mini L6! 

9 NarsilM user videos for BLF Q8, GT, GT Mini and ROT66

Texas_Ace BLF Calibrated Lumen tube

Maukka Calibration Lights for DIY Lumen Measuring Devices

klrman
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So I should ask the sellers if they have the updated version with coil springs then.  From what I read, turbo mode does not last very long at all before stepping down to 2800lm so that is something I should consider too. I also have to ask myself how bright before a flashlight is bright enough!  I'm still amazed at my L6 and really, that should be enough light for anything I would ever need other than showing really.

JasonWW
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klrman wrote:

So I should ask the sellers if they have the updated version with coil springs?


I don’t think this is necessary because they stopped selling the old ones and all the current ones use springs. This change was several months ago. I guess you could verify it if you wanted to.

My Convoy L6 thread with XHP70.2, Texas Avenger FET driver, Narsil v1.2 ramping firmware (old), lighted side switch and cut down SMO reflector. Lots of amp draws on stock driver as well. 

My Supfire L5-S thread with XHP70, Texas Avenger FET driver, NarsilM v1.0 ramping firmware and lighted side switch. My mini L6! 

9 NarsilM user videos for BLF Q8, GT, GT Mini and ROT66

Texas_Ace BLF Calibrated Lumen tube

Maukka Calibration Lights for DIY Lumen Measuring Devices

klrman
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JasonWW wrote:
klrman wrote:

So I should ask the sellers if they have the updated version with coil springs?

I don't think this is necessary because they stopped selling the old ones and all the current ones use springs. This change was several months ago. I guess you could verify it if you wanted to.

 

I usually buy lights of ebay and make them an offer for a good deal, but you just never know what the sellers are selling so I may as well ask them.   I got two Nitecore EA81's for a real steal on ebay and they are top notch.

JasonWW
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klrman wrote:

So, what is the word on the DT70?  Are there later batch version that are more reliable?  It’s one of the lights I have been eyeing for quite some time now and I am still thinking of getting one.  From what I hear, it is a gamble though if we get a dud.


Why do you want it when there are better lights out there for a cheaper price?

My Convoy L6 thread with XHP70.2, Texas Avenger FET driver, Narsil v1.2 ramping firmware (old), lighted side switch and cut down SMO reflector. Lots of amp draws on stock driver as well. 

My Supfire L5-S thread with XHP70, Texas Avenger FET driver, NarsilM v1.0 ramping firmware and lighted side switch. My mini L6! 

9 NarsilM user videos for BLF Q8, GT, GT Mini and ROT66

Texas_Ace BLF Calibrated Lumen tube

Maukka Calibration Lights for DIY Lumen Measuring Devices

klrman
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 Any recommendations?  My Q8 should be coming soon, but I need one lummen monster just for show off purposes on special occasions  <img src= " />

JasonWW
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The Astrolux MF01 at $80 is quite impressive. I think the xpg2 version measures 12k to 13k lumen. The best part is if the driver fails, it can be replaced by an aftermarket Texas_Ace fet driver running NarsilM from Lexel which boosts output to about 18k lumen! The Nichia version is a few thousand less lumen on turbo but thats because it’s not as efficient.

The big difference between the MF01 and the DT70 is the beam shape since the MF01 uses tir lenses and has less bright spill lighting.

Haikelite also just had a Group Buy on their new MT09R which is a reflector style light using 3 × 70.2 and a Texas_Ace based driver with ramping. It’s not using NarsilM, but it’s similar. These put out 15k and were costing $125.

My Convoy L6 thread with XHP70.2, Texas Avenger FET driver, Narsil v1.2 ramping firmware (old), lighted side switch and cut down SMO reflector. Lots of amp draws on stock driver as well. 

My Supfire L5-S thread with XHP70, Texas Avenger FET driver, NarsilM v1.0 ramping firmware and lighted side switch. My mini L6! 

9 NarsilM user videos for BLF Q8, GT, GT Mini and ROT66

Texas_Ace BLF Calibrated Lumen tube

Maukka Calibration Lights for DIY Lumen Measuring Devices

klrman
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Thanks Jason, I'll have a look at them all and see what looks good.  Appreciate the help on this!

 

I was hoping for lights that could use protected batteries.  Had a look at the Astrolux MF01 before but specs clearly state unprotected batteries but it really looks good.  

 

JasonWW
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klrman wrote:
I was hoping for lights that could use protected batteries.

Had a look at the Astrolux MF01 before but specs clearly state unprotected batteries but it really looks good.


You would need to swap to different springs in the carrier to fit longer cells. Some people have done that to fit protected cells. Maybe cutting them shorter would work? You just need to reduce their collapsed height.

Keep in mind this light draws a lot of amps so you need good cells with protection circuitry that can handle at least 5A to 6A 10A each.

My Convoy L6 thread with XHP70.2, Texas Avenger FET driver, Narsil v1.2 ramping firmware (old), lighted side switch and cut down SMO reflector. Lots of amp draws on stock driver as well. 

My Supfire L5-S thread with XHP70, Texas Avenger FET driver, NarsilM v1.0 ramping firmware and lighted side switch. My mini L6! 

9 NarsilM user videos for BLF Q8, GT, GT Mini and ROT66

Texas_Ace BLF Calibrated Lumen tube

Maukka Calibration Lights for DIY Lumen Measuring Devices

hIKARInoob
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JasonWW wrote:
klrman wrote:
I was hoping for lights that could use protected batteries.

Had a look at the Astrolux MF01 before but specs clearly state unprotected batteries but it really looks good.


You would need to swap to different springs in the carrier to fit longer cells. Some people have done that to fit protected cells. Maybe cutting them shorter would work? You just need to reduce their collapsed height.

Keep in mind this light draws a lot of amps so you need good cells with protection circuitry that can handle at least 5A to 6A each.

Are you sure about this? I thought max current was more like 9A or so.

Edit: nah, quick calculation resulted in closer to 6A. (I used to calculate using specified 12000 lumens, now I took 9000 lumens for 219C, which results in this difference)

JasonWW
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hIKARInoob wrote:
JasonWW wrote:
Keep in mind this light draws a lot of amps so you need good cells with protection circuitry that can handle at least 5A to 6A each.

Are you sure about this? I thought max current was more like 9A or so.

Edit: nah, quick calculation resulted in closer to 6A. (I used to calculate using specified 12000 lumens, now I took 9000 lumens for 219C, which results in this difference)


Let me think. Lexel tested 16A, but I believe that was at 8v, right? It’s a 2S2P battery carrier. So with 2 cells that’s 16A each. 4 cells would be 8A each.

Yeah, I was wrong earlier. I was thinking 4A each and 5A to 6A to give some overhead. Now I see it’s double that. So you would want protection circuitry that can do about 10A per cell.

So probably the GA or MJ1 from Liion Wholesale or the GA from MTN Electronics. There’s not too many protected cells that can do 10A.

My Convoy L6 thread with XHP70.2, Texas Avenger FET driver, Narsil v1.2 ramping firmware (old), lighted side switch and cut down SMO reflector. Lots of amp draws on stock driver as well. 

My Supfire L5-S thread with XHP70, Texas Avenger FET driver, NarsilM v1.0 ramping firmware and lighted side switch. My mini L6! 

9 NarsilM user videos for BLF Q8, GT, GT Mini and ROT66

Texas_Ace BLF Calibrated Lumen tube

Maukka Calibration Lights for DIY Lumen Measuring Devices

Winston Wulf
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JasonWW wrote:
Why do you want it when there are better lights out there for a cheaper price?

Oh, that would be nice to know – do you have any indications?

Because when I think of the DT70, I see a 16 klm-flashlight at GB for something around 150 bucks including batteries… and I see no alternatives…

Always be yourself. Unless you can be BATMAN.

 

Then always be BATMAN.

JasonWW
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Winston Wulf wrote:
JasonWW wrote:
Why do you want it when there are better lights out there for a cheaper price?

Oh, that would be nice to know – do you have any indications?

Because when I think of the DT70, I see a 16 klm-flashlight at GB for something around 150 bucks including batteries… and I see no alternatives…


Just look at my next post. #114.

BTW, I think it was actually closer to 13k lumen and not the advertised 16k. It’s been a while since I’ve read a review, though.

My Convoy L6 thread with XHP70.2, Texas Avenger FET driver, Narsil v1.2 ramping firmware (old), lighted side switch and cut down SMO reflector. Lots of amp draws on stock driver as well. 

My Supfire L5-S thread with XHP70, Texas Avenger FET driver, NarsilM v1.0 ramping firmware and lighted side switch. My mini L6! 

9 NarsilM user videos for BLF Q8, GT, GT Mini and ROT66

Texas_Ace BLF Calibrated Lumen tube

Maukka Calibration Lights for DIY Lumen Measuring Devices

Winston Wulf
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Ah, sorry, this slipped thru my fingers.

So this was something I tried before:

Based on this I would not call the MF01 “better” – it’s different and will not go as far as the DT70. And as written, based on the actual prices it’s also not cheaper…

Always be yourself. Unless you can be BATMAN.

 

Then always be BATMAN.

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