Review: Convoy L21A SST40 vs Convoy L21A XHP35

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Lumeniac
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Review: Convoy L21A SST40 vs Convoy L21A XHP35

Pair of new powerful 21700 powered long throw flashlights from Convoy. I suppose lot of you waited for this affordable and powerfuls throwers. Recently i posted review of Convoy M21A SST40, their younger brogher.

I decided not to make separate review of them and make the comparative one instead.
\
You can buy L21a at
AMAZON
ALIEXPRESS SST40 | ALIEXPRESS SST40
BANGGOOD

for years i`ve been buying batteries at Nkon.nl. sincerely recommend this store.

As usually specs are simple )


21700 battery

PACKAGE AND APPEARANCE

Package is the same thick-walled beige cardboard box. Inside – nothing but a flashlight. Nothing at all, not even a lanyard or o-rings. It is clear that Convoy is committed to helping you save money on your purchase. But the price of lanyard or o-rings is close to zero, in contrast to the benefits of these things.


It is expected that the appearance of the Convoy L21A (both versions look the same, so I don’t specify which one) is quite simple. I am sure the target audience of the Convoy is those who first of all want to buy an inexpensive, but still good flashlight at aliexpress, and all sorts of designer tricks will inevitably make the price higher. I completely agree with this policy. Want more flexible UI or different precise high design knurling? Be ready to open your wallet..

BTW, among Convoy users, there is quite many people who are new in choosing flashlights. I made special FAQ “How to choose flashlights” and if you are one of them, hope it`ll help you to pick proper flashlight.

 
Flashlight body is the same goode olde Convoy L2 (short tube version). Quite large, heavy. Nothing new – the same flashlight that lookes more like a tool.



18cm and almost 600g (with battery) is a good for heat dissipation, but it will most likely be uncomfortable to carry such thing in a jacket pocket.

If you are looking for something more compact, but still powerfull with SST – take a look at M21A SST40 which stays in the centre.

The tailbutton is still the same. Nothing new. The spring is shunted.

But spring at the head side is different. The same shunt on the SST40 version and the double spring on the XHP35

 

 

sst

xhp

Threads are well lubricated. Btw, XHP35 version had o-ring torn apart. Exactly as i said, o-ring would be reall help. Of course i have spare ones, but someone may not have.

Large squares of knurling are pretty tenacious

Weight balance is normal, comfortable to hold. And here, by virtue of dimensions and weight, a lanyard would be extremely useful. When i made video and shone from the balcony, holding flashlight with a reverse grip,i was nervous, as though how not to drop L21A.


The head is quite large, with excellent deep finning. Considering the brightness of each of the models, all this is a definite plus.

The wide and deep bezel can be twisted easily. As usual, there is no difficulty in getting to any part of the flashlight. Something to fix or cunstomize.



Glass with anti-glare coating, reflector, of course, smooth.

At the bottom there is a choice of SST40 HD (i.e. with a silicone dome) or XHP35 HI ( without a dome)


That’s all for appearance. There is absolutely nothing new here, all design (except the fact flashlight now fits 21700 battery) migrated from Convoy L2 XML-2.

As for the quality of workmanship, then it is the same as it was. With the maximum probability it will be quite normal, but in my case the o-ring was torn. However, that is 1st time for all the LOT of Convoy lights that i bought or got for review.
 
UI

all the same. Extremely simple.

Cycle through modes with half-clicks or quick clicks
Luckily there is no Strobe or SOS.

 

How the Convoy L21A shines 

The light here is completely different, and everyone can choose for themselves. The typical XHP35 “piercer” is dimmer in general, and sidelight is dimmer – but hotspot is really bright and it is possible to choose a NW version . And with the same brightness, the candela (i.e., breakdown force) will be greater.

 

Convoy L21A SST40 has a significantly brighter sidelight. Such overall brightness compensates worse throw comparing to XHP35 and they are equal in throw at maximum modes. Celing bounce test showed that the SST40 version is somewhere 20% brighter than the XHP35.


 




Both flashlights have good stabilization. In cold and / or windy weather, a thermal control set to 55 degrees will allow working at almost maximum level for almost an hour. Carrying along spare batteries, this makes it possible to shine exceptionally far for quite long time.

And since I think that it is extremely rare to shine at a distance of more than 500m, it is quite possible to do the same previous mode and get a fully stabilized brightness for an hour and a half and more, regarding to LED version.

 

the claimed 30% in the STT version in reality turn around 40% according to my measurements. This is exactly what I will call this mode in the graphs.

cutoff is around 2.9 for lower mode and like 3v for higher more (you can get 1% even after L21A tutns off from 2 higher modes)

Well, let’s see how both flashlights shine alive

I think that such models will be interesting first of all to those who want to buy a powerful long-range flashlight, which means that they are supposed to be used in higher modes. And here 0.1% of the SST40 version seemed to me practically useless , unlike the 1% of the XHP35, where this mode gave clearly visible light at a distance of 75m!

50m
definitely a to short distance for maximum brightness, even a 3% mode for each of the flashlights will fit here, especially the XHP35.





75m
a much more reasonable distance for this kind of flashlight. I think that guards or hunters often need light for this kind of distance. And both models here give a remarkable detail light of 40%, and I still consider 100% mode too bright here. Just at this distance, a brighter side light of the SST40 can be cleary seen .



 

Here, by the way, it is clear that even 1% gives visible light in the XHP35 version.



175m
In fact, all EDC flashlights performse really bad at this distance due to the fact that pocket size reflector simply will not give a sufficiently focused beam. And the optics of just bright flashlights with XHP50.2 \ XHP 70.2 (not to mention models with 3-4 LEDs) often give more floodlight to ensure constant working at this distance, thermal regulation will seriously limit time of use here.

Of course, even a pocket long-range flashlight like the same Convoy C8 + will quite normally enlighten this distance. The question is that it will be more likely a 100% mode that will not last long (although something like 30-50% will somehow fit as well). And both L21A show best here. The SST version performes better as it has brighter sidelight. But personally, I like the light from XHP more.



 


400m

The C8 + mentioned above shines here at the limit of its forces. Of course, I mean brightness, which has some practical sense. Both L21A give here much more detailed light. 40% of the modes here are perhaps only slightly dimmer than 100% of the C8 +.




800 (!) meters

it’s hard for me to imagine a situation when someone needs light at such a distance, because with the naked eye it will be difficult to even distinguish Humvee from a “Smart”. Nevertheless, if the C8 + is expected to give light only at the level of “something glistens in the windows”, then both L21As hit at a level that I had previously seen only in radically more expensive models of top brands. Work at such a distance is what you expect from $100-200 models: Olight Javelot Pro, Acebeam K65 \ 75 \ T30, Thrunite TN42 and a couple of other models similar in size and size. And here the $ 40 flashlight hits unless a little worse.

 


 

Of course, in the video review there is a bit and live video with examples of how both of these flashlights shine. i will add english subtitles tomorrow, but you you dont have to understand Russian to see how both models shine.

Overall impression

Not everyone needs light with such throw.

But! Prior to the Convoy L21A, a buyer who wanted to buy a powerful long-throw flashlight, had to spend a way more money. It is clear that more flexible UI, much modes, in general, beautiful appearance are also part of brand and expensive models. Convoy L21A lacks all this. All that both model have is a small price tag and excellent throw, which you will no longer find in such a price category. And yet there is a choice not only between the XHP35 and SST40 versions, but also color temperature. And I think this is quite enough.

In short, if you need good throw and comparative compactness, you should look at the Convoy M21A SST40. Convoy M3 will be significantly brighter and slightly larger, but it is mid-range flashlight, it will highlight 400m at maximum, not that good and for a short time.

 If the size does not bother you, the L21A will not disappoint you – both models are exceptionally long-range ones.

What to choose, Convoy L21A XHP35 or Convoy L21A SST4? Exclusively a matter of taste. In the case of the first, you get less side light, but there is neutral light option and good 1-3% lower modes. The second has 0.1% , mostly useless, and the light is no warmer than 5000K, but the side light and overall birghtness are very good.

 

Edited by: Lumeniac on 01/18/2021 - 08:30
Yokiamy
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Excellent review, and an excellent light.
What is the tube diameter on yours?

I own a L21A sst40 and i’m really happy with it, only downside is it is CW.
You can easily remove the thermal control, so no stepping down anymore (and more heat) Here you will find more info.

Since i was tempted by the L21a XHP35 version, i just ordered the components from Simon.
please note, the xhp35 driver has no spring (Why is that Simon? I’m not good in soldering springs)

Here is the FT03 (L) vs L21A ®

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Lumeniac
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Yokiamy wrote:
Excellent review, and an excellent light. What is the tube diameter on yours?
will check tomorrow
hasddie293
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Were they using high drain cell?? What cell were in use, esp L21A have seem not fit all cell.

I do recall some compariaon of FT03 VS L21A in FT03 thread, I think it was you? There some plenty of more pic…

So came down to hot question, whose has the furhest throw? What advantage/disadvantage from both lights?

Yokiamy wrote:

Here is the FT03 (L) vs L21A ®
!{width:88%}https://i.imgur.com/Yy36SGY.jpg!

Anyway, being waiting long for this review. Thank buddy, it was great insight ln/out of flashlight. I do really appreciates it. Keep it up!!

In search of the most ideal flashlight in town:
1. BRIGHTNESS
2. Durabillity
3. Design
4. Quality
5. Price$$$

fluke
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Yokiamy wrote:
Excellent review, and an excellent light. What is the tube diameter on yours? I own a L21A sst40 and i’m really happy with it, only downside is it is CW. You can easily remove the thermal control, so no stepping down anymore (and more heat) "Here you will find more info.":http://budgetlightforum.com/node/68416 Since i was tempted by the L21a XHP35 version, i just ordered the components from Simon. please note, the xhp35 driver has no spring (Why is that Simon? I’m not good in soldering springs) Here is the FT03 (L) vs L21A (R) !{width:88%}https://i.imgur.com/Yy36SGY.jpg![/quote]

 

Confused.

Which emitters are the FT03 and L21A in the beam shots?

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Thanks for posting the comparison shot to the FT03.

I love the Convoy design but it’s hard to beat the FT03 with built in charging for those who use lights for work and don’t want to lug around extra batteries or chargers.

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Both are SST40

The FT03 is driven harder, which is confirmed by my Lumen tube.

Ft03 does about 2300 Lm OTF
L21A does about 2050 Lm OTF

Build quality of the Convoy is way better though.

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Lumeniac
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hasddie293 wrote:
Were they using high drain cell??
i used tesla cells from simon, just woke up, dont remember exactly name

 

i bet  both models  consume way less than battery can give (amperage)

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I hear them saying L21A SST40 perform much longer on Turbo than FT03 bcos of its deep sink fins help thermal dissipate properly than FT03. when I look at L21A reflector part as above, boy it had side edges..that could also help heat dissipation too.

But this thing ain’t Fet driven instead of convoy 6A driver. But both throw fairly about the same range based of what read there on FT03 thread… pretty awesome right?

In search of the most ideal flashlight in town:
1. BRIGHTNESS
2. Durabillity
3. Design
4. Quality
5. Price$$$

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Yokiamy wrote:
What is the tube diameter on yours?

Batteries  from Simon - 21.1mm

Liitokala battery - 21.6-21.7mm

Yokiamy
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I mean the tube inner diameter, since not all cells fit. Simon mentioned he will change it the following batch, obviously i have the first batch

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Lumeniac
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like 2,1-2,2

exactly for tesla cell

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are you really sure? Batch 1 has 21,5 mm

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Can you fit the 26650 tube from the L2 straight to this?

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The_Fat_Controller wrote:
Can you fit the 26650 tube from the L2 straight to this?

No, the diameter is different

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If you own an adjustable reamer (or know somebody who owns one Wink ) and if you are not overly fond of the ano on the inside of the tube you can widen the diameter of the tube till your battery of choica fits perfectly. Did this to my Surefire 6PD and the Keeppower 3400 battery slides in with a soft sigh.

You are a flashaholic if you are forced to come out of the closet, to make room for more flashlights.

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Yokiamy wrote:

No, the diameter is different

In your review (2nd batch) measured empty weight: 358 g.
While in Simon store it says 540 g. Is it the weight of the 1st batch or is it just a mistake? the difference seems too big.
I want to ask you because you have the 1st and 2nd batch.
Thanks
Lumeniac
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got it, will check and reply later

 

Lumeniac
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365g, dont know how i got this 540g

strange mistake

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Xeen wrote:
Yokiamy wrote:
No, the diameter is different
In your review (2nd batch) measured empty weight: 358 g. While in Simon store it says 540 g. Is it the weight of the 1st batch or is it just a mistake? the difference seems too big. I want to ask you because you have the 1st and 2nd batch. Thanks

That must be including packaging, check Simon his website

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I got the Emisar D2SV2 on the way and I am looking for a good thrower to accompany it, doesn’t have to be pocket size. Is the L2 obsolete compared to the L21A or is it just a matter of a different battery tube? I was also looking at the Noctigon K1, but this seems to be in a different league in terms of throw (much further but almost no side light)

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The L2 is the same light, but basically with a 26650 tube, whereas the L21 has a 21700 tube
The 21700 version is only released just last year whereas the L2 is already a couple of years old.
It’s a very solid light, the only thing is Simon Should look for a good 4500-5000K tint for the XHP35. I have multiple versions (SST20, Osram White flat, XHP35) the XHP is very nice, but the 4000K is just a bit too warm

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Yokiamy wrote:
the only thing is Simon Should look for a good 4500-5000K tint for the XHP35. I have multiple versions (SST20, Osram White flat, XHP35) the XHP is very nice, but the 4000K is just a bit too warm

How is the tint of the 4000K XHP-35 HI from Simon? Neutral-rosy or neutral-green/yellow?

virence.com Nichia E21A sw30+sw40 Wizard Pro ; Skilhunt H03 XP-E2 660nm Photo Red ; Wizard Pro E21A 2000K ; S2+ E21A sw40 d220 (for sale)

 

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There is no tint shift, it gives a very nice clean beam, but it tends more to the yellowish side

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So neither great neither terrible.

virence.com Nichia E21A sw30+sw40 Wizard Pro ; Skilhunt H03 XP-E2 660nm Photo Red ; Wizard Pro E21A 2000K ; S2+ E21A sw40 d220 (for sale)

 

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Exactly, it would be better with a good neutral XHP35

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Anyone know the different between driver instruction: 4 modes vs 12 groups on Convoy L21A?

Which type is better to buy?

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it depends on your needs

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brabu5 wrote:
Anyone know the different between driver instruction: 4 modes vs 12 groups on Convoy L21A?

Which type is better to buy?

Does the L21A XHP35-Hi version also come with the “12-groups” driver? Or does it only apply to the L21A SST40 variant?

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From the store i bought at Aliexpress, the 12 groups only avail on SST version.

Decided to go with the 12 groups since have more options.

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I received my 4000k XHP35 L21a last night.

To my surprise its clocking in with a CRI of R87 to 90 & R8 of 50 to 70.
Now the DUV is certainly above the BBL, but not as much as a lot of high CRI Crees.
Im measuring +0.0043 at high and +0.0020 on turbo.

Certainly wasnt expecting anything but a 70CRI. I even have an 80CRI 4000k XHP35 HI i purchased to install.

The tint is actually quite nice given the DUV. Unsure what this other emitter from kaidomain i have will see, will give it a try and see where it falls on the BBL.
Maybe a piece of Zircon 805 on the stock 4000k would actually end up being the best combination for a BBL hugging high CRI/high power thrower!

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