Has anyone done any reviews on the new Convoy S21B yet?

23 posts / 0 new
Last post
rogue2020
Offline
Last seen: 2 months 4 days ago
Joined: 07/28/2020 - 23:14
Posts: 15
Has anyone done any reviews on the new Convoy S21B yet?

Hi…

I would like to know has anyone done any written reviews on the new Convoy S21B yet? I noticed that there are two options: SST40 and KW CULPM1.TG.

I would like to see the runtime and performance chart if possible.

Thanks!

darosk
darosk's picture
Offline
Last seen: 2 hours 21 min ago
Joined: 10/06/2019 - 22:03
Posts: 133
Location: Sabah, Malaysia

The s21b with osram is fairly new, I think only a week or so it’s been up. Even if someone ordered it day 1 it likely wouldn’t have landed yet (unless it was a custom order from earlier).
I’m interested too, but we gotta wait I guess.

My Lights (Updated: Feb 5, 2021)

deliafranco930
Offline
Last seen: 2 months 1 week ago
Joined: 11/09/2020 - 08:29
Posts: 24
manithree
Offline
Last seen: 13 hours 16 min ago
Joined: 01/12/2013 - 01:08
Posts: 535
Location: Orem, UT, USA

Besides the emitter (in the Osram, anyway), what’s the difference between the S21A and the S21B? The dimensions look similar, the driver and firmware look exactly the same. Throwier reflector, maybe?

Edit: Ok, I forgot to mention the obvious cosmetic differences on the exterior (S21A is mostly knurled, S21B isn’t). Is that really the major difference?

RapidLux
RapidLux's picture
Offline
Last seen: 9 hours 23 min ago
Joined: 03/24/2017 - 13:21
Posts: 515

Another S21B review

RapidLux
RapidLux's picture
Offline
Last seen: 9 hours 23 min ago
Joined: 03/24/2017 - 13:21
Posts: 515

One more S21B review, same reviewer.

JaredM
JaredM's picture
Offline
Last seen: 58 min 19 sec ago
Joined: 10/31/2011 - 13:33
Posts: 1746
Location: Pittsburgh, Pennsylvania

The S21a uses a screw in brass pill and the B has an integrated shelf

Serlite
Offline
Last seen: 1 hour 14 min ago
Joined: 11/01/2018 - 16:14
Posts: 436
JaredM wrote:
The S21a uses a screw in brass pill and the B has an integrated shelf

That’s some good information to know! Well, maybe just for newer modders like me.
I still have bad memories of trying to “unscrew” the shelf of a defective SP32A V2.0. I attacked it with every tool I had, thinking that with just a little bit more force, it would unscrew and I could get at the driver.

Then I took a closer look and realized it was actually part of the flashlight head. Ah…

rogue2020
Offline
Last seen: 2 months 4 days ago
Joined: 07/28/2020 - 23:14
Posts: 15

Hi everyone…

Thanks for the input. But I’m looking for the runtime performance graph for the Convoy S21B, how bright, how long, etc. You know, the one that Zeroair or 1Lumen usually provide. Have anyone something similar like that?

Thanks!

blueb8llz
Offline
Last seen: 14 hours 1 sec ago
Joined: 06/02/2012 - 01:16
Posts: 3101
Location: California

I’m waiting til convoy releases one with a sbt90.2.

JaredM
JaredM's picture
Offline
Last seen: 58 min 19 sec ago
Joined: 10/31/2011 - 13:33
Posts: 1746
Location: Pittsburgh, Pennsylvania

An S21B w/ a 90.2? Ain’t gonna happen unless you make it yourself

justanotherguy
Offline
Last seen: 6 hours 46 min ago
Joined: 11/26/2012 - 22:11
Posts: 1028
Location: NW
JaredM wrote:
The S21a uses a screw in brass pill and the B has an integrated shelf

But other than that, the beam is pretty much going to look the same?

The shelf is good for heat dissipation………….?

I think I would like a Convoy in 21700 and want something floody

JaredM
JaredM's picture
Offline
Last seen: 58 min 19 sec ago
Joined: 10/31/2011 - 13:33
Posts: 1746
Location: Pittsburgh, Pennsylvania

If you want floody, then a reflector light may or may not be what your after. I’ll say that with a screw in pill design, it offers flexibility to a variance in optic and mcpcb stack up heights. This means in an S21A, you could easily use a floody TIR in place of the reflector without the headache of spacers/ shims. The A model will theoretically be at a thermal disadvantage vs the B, but neither can sink all that much power continuously.

Later I’ll link the optics I’ve found with the perfect diameter for the s21A and FW3A series lights. I have samples of all variations. (From AE)

Oh and to answer your questions. Yes, the shelf should improve heat dissipation and the reflectors are shared between the two – although the A std is OP and B is SMO

Nachtfeuerzeug
Nachtfeuerzeug's picture
Offline
Last seen: 1 week 5 days ago
Joined: 08/31/2013 - 16:10
Posts: 695

JaredM wrote:
If you want floody, then a reflector light may or may not be what your after. I'll say that with a screw in pill design, it offers flexibility to a variance in optic and mcpcb stack up heights. This means in an S21A, you could easily use a floody TIR in place of the reflector without the headache of spacers/ shims. The A model will theoretically be at a thermal disadvantage vs the B, but neither can sink all that much power continuously. Later I'll link the optics I've found with the perfect diameter for the s21A and FW3A series lights. I have samples of all variations. (From AE) Oh and to answer your questions. Yes, the shelf should improve heat dissipation and the reflectors are shared between the two - although the A std is OP and B is SMO

Would one of these work for this light. http://www.carclo-optics.com/optic-10138?optictype=tir&diameter=20.0

EDC

FW3A, SST20 4000K || S21A, Crescendo Mtn20DD, LH351D 4000K || SP32A, SST40 5000K

Recent/ongoing Mods:

S2+, TexAven 17mm, LH351D | S21A, Crescendo 20mm, XPL HI 5000K | L2 w/Mtn17DD Zener Guppydrv, XHP-50 | C8+ OP, DD XHP-50

SP32A w/SST40 5000K | TIR Upgrades | EagleTac clip | Ultrafire C2 w/6A 20mm & LH351D | S2+, Biscotti, Nichia 219C 2700K |

Reviews:

Sofirn SP31 v2.0 Tactical Flashlight (Cree XPL HI) || Sofirn SD05 Scuba Diving Flashlight || Sofirn SC31 USB Rechargeable (XP-G3) || Sofirn SC31 Pro 5000K

darosk
darosk's picture
Offline
Last seen: 2 hours 21 min ago
Joined: 10/06/2019 - 22:03
Posts: 133
Location: Sabah, Malaysia

Are there ‘throwy’ TIRs available for the S21A/B?

To my understanding, the Manker Mc13 uses such a TIR. I’m guessing it’s a specialised one by Manker though.

My Lights (Updated: Feb 5, 2021)

JaredM
JaredM's picture
Offline
Last seen: 58 min 19 sec ago
Joined: 10/31/2011 - 13:33
Posts: 1746
Location: Pittsburgh, Pennsylvania

I will have to take lux measurements of my TIR samples and see how they compare to the reflector, but yes, there are throwy TIR optics available. The Carclo type linked will work fine in the s21A, especually if you’re going to use a protected cell. The optic is 1.8mm shorter, so the battery compartment will be that much longer. If larger springs are used at both ends, contact issues shouldn’t exist.

Nachtfeuerzeug
Nachtfeuerzeug's picture
Offline
Last seen: 1 week 5 days ago
Joined: 08/31/2013 - 16:10
Posts: 695

Thank you Jared! I see LEDSupply is in Vermont. Are there other suppliers in the USA?

EDC

FW3A, SST20 4000K || S21A, Crescendo Mtn20DD, LH351D 4000K || SP32A, SST40 5000K

Recent/ongoing Mods:

S2+, TexAven 17mm, LH351D | S21A, Crescendo 20mm, XPL HI 5000K | L2 w/Mtn17DD Zener Guppydrv, XHP-50 | C8+ OP, DD XHP-50

SP32A w/SST40 5000K | TIR Upgrades | EagleTac clip | Ultrafire C2 w/6A 20mm & LH351D | S2+, Biscotti, Nichia 219C 2700K |

Reviews:

Sofirn SP31 v2.0 Tactical Flashlight (Cree XPL HI) || Sofirn SD05 Scuba Diving Flashlight || Sofirn SC31 USB Rechargeable (XP-G3) || Sofirn SC31 Pro 5000K

Neb_77
Offline
Last seen: 6 hours 30 min ago
Joined: 09/10/2020 - 22:25
Posts: 5
Location: Ohio
JaredM wrote:
The S21a uses a screw in brass pill and the B has an integrated shelf

Thanks for the info. So does that mean better heat dissipation? From what I have read aluminum conducts heat better than brass (Brass vs aluminum) so I assume an integrated shelf would move the heat better. That said why does Convoy make their pills out of brass?

Chicken Drumstick
Offline
Last seen: 1 month 3 weeks ago
Joined: 08/27/2012 - 05:00
Posts: 2762
Location: UK

Do either of these lights come with pocket clips? The S21b doesn’t look to have a recess in the tube for a clip?

Personally I can see no use in the lights if they don’t have a clip apart from maybe fitting to a bike via a mount. But then a 26650 would probably be better for that anyway.

Nachtfeuerzeug
Nachtfeuerzeug's picture
Offline
Last seen: 1 week 5 days ago
Joined: 08/31/2013 - 16:10
Posts: 695

Chicken Drumstick wrote:
Do either of these lights come with pocket clips? The S21b doesn't look to have a recess in the tube for a clip?

Here's what I did:

https://budgetlightforum.com/comment/1625875#comment-1625875

Convoy lights are customizable with prefabricated parts for sale. So, there is a bolt-on Convoy clip that'll work fine. 

EDC

FW3A, SST20 4000K || S21A, Crescendo Mtn20DD, LH351D 4000K || SP32A, SST40 5000K

Recent/ongoing Mods:

S2+, TexAven 17mm, LH351D | S21A, Crescendo 20mm, XPL HI 5000K | L2 w/Mtn17DD Zener Guppydrv, XHP-50 | C8+ OP, DD XHP-50

SP32A w/SST40 5000K | TIR Upgrades | EagleTac clip | Ultrafire C2 w/6A 20mm & LH351D | S2+, Biscotti, Nichia 219C 2700K |

Reviews:

Sofirn SP31 v2.0 Tactical Flashlight (Cree XPL HI) || Sofirn SD05 Scuba Diving Flashlight || Sofirn SC31 USB Rechargeable (XP-G3) || Sofirn SC31 Pro 5000K

the_holodoc
Offline
Last seen: 9 hours 45 min ago
Joined: 07/13/2020 - 16:21
Posts: 10
Location: Germany

Over at TLF are some measurements for the Osram equipped Version by amaretto:
https://www.taschenlampen-forum.de/threads/info-zur-convoy-s21b-mit-osra...

Kind regards
Frederick

Nachtfeuerzeug
Nachtfeuerzeug's picture
Offline
Last seen: 1 week 5 days ago
Joined: 08/31/2013 - 16:10
Posts: 695

the_holodoc wrote:
Over at TLF are some measurements for the Osram equipped Version by amaretto: https://www.taschenlampen-forum.de/threads/info-zur-convoy-s21b-mit-osra... Kind regards Frederick

Ich habe nur nach Informationen wie diesen gesucht! Dankeschön

EDC

FW3A, SST20 4000K || S21A, Crescendo Mtn20DD, LH351D 4000K || SP32A, SST40 5000K

Recent/ongoing Mods:

S2+, TexAven 17mm, LH351D | S21A, Crescendo 20mm, XPL HI 5000K | L2 w/Mtn17DD Zener Guppydrv, XHP-50 | C8+ OP, DD XHP-50

SP32A w/SST40 5000K | TIR Upgrades | EagleTac clip | Ultrafire C2 w/6A 20mm & LH351D | S2+, Biscotti, Nichia 219C 2700K |

Reviews:

Sofirn SP31 v2.0 Tactical Flashlight (Cree XPL HI) || Sofirn SD05 Scuba Diving Flashlight || Sofirn SC31 USB Rechargeable (XP-G3) || Sofirn SC31 Pro 5000K

Molek
Offline
Last seen: 2 months 2 days ago
Joined: 11/16/2020 - 07:59
Posts: 10
Location: Poland

Does anyone have a wide optics bicycle collimator for the S21B sst40 flashlight?