Sofirn SP33 26650 e-switch flashlight

That’s what I thought too. There is the one o-ring between reflector/lens/inside of bezel, but no o-ring between the bezel and head. What stops ingress between the bezel and head? For all that they did right, they may have missed something right there. Should be an o-ring up at the top of the threads on the SS bezel and a landing inside the aluminum head.

Edit: Ok, so I checked the actual physical aspect of the bezel and head… there is indeed an o-ring groove in the SS bezel and there is a landing, there just wasn’t an o-ring applied. There are 2 extra o-rings in the bag included in the box so I put one on the bezel and it does fit to seal, so that’s covered even if they left it out on my sample when assembling the light.

Edit II: In a similar way that the newer Eagle Eye X6’s have a ramped shelf on the reflector that squeezes the o-ring out into the bezel, this one does the same thing. When tightened down the bezel is sealed by the o-ring on top of the reflector in a 3 way contact of lens/reflector/bezel. It’s somewhat difficult to get this o-ring to spread out into this shelf once taken apart, I found that a back and forth on/off as I tightened it allowed it to flare out into the reflector shelf.

So, if there’s no o-ring sealing where the lens sits up against the bezel, can water get past the lens around the inside of the bezel and down into reflector housing? or do you think that o-ring around the reflector sufficiently seals that off?

It seems as though the o-ring around the reflector get’s smashed out into the sides of the bezel, like the Eagle Eye X6. When putting the reflector/o-ring/lens into the SS bezel it wants to hang up on the o-ring, so when tightened it should press out and make the seal.

Ok sounds good. Nice review btw!

I have an Lumintop SD26 that is of comparable size. The Lumintop has a fancier X patterned knurling and a slightly larger head diameter but they’re pretty close to the same overall size. The hot spot from the Sofirn SP33 is smaller but both are well defined. The Lumintop emitter color is blue-white, as compared to what is a now noticeable pink or slightly rosy hue in the Sofirn. I had thought the Sofirn hue was around a 3C, and that may well be, but it’s either that or a 3D.

The Sofirn has the lighted side switch cover, a nice touch, and also a SS bezel, again a nice touch. The Sofirn also comes in around half the price of the Lumintop, so all in all it’s a nice deal on a well made light.

Great review Dale, and really interesting light, Sofirn also have some new C8 models with 5,6Amp on highest level in stock with XPL , and 1700+ lumens they claim… Also driver have two setup with moonlight, and without blinking modes. They look good as Thorfire C8, so I am tempting to order one from Ali store.

Hello Khas,

The C8—C8F are ready on Aliexpress.com. If you are interested in testing the torch with 2 light groups, please feel free to contact us on Aliexpress:

https://www.aliexpress.com/store/product/Sofirn-New-C8-Tactical-Cree-XPL2-LED-Flashlight-18650-Powerful-Flashlight-Portable-Torch-light-Two-Groups/2933049_32829685476.html?spm=2114.12010608.0.0.7af1d099dzZWzM

Have a good time

Tracy

I have ordered one it’s currently :

“Waiting for pick up” Since : 2017-09-15 09:26:11 [GMT+8]

Hope somebody will pick it up soon :wink:

SP33 works fine with light diffuser for Convoy M1/M2. Good camping lamp with lot of light :+1:

Cool info, thanks for posting… I really like this one a lot, used it last night and am just really impressed with it’s coverage. This is one of those that a person would do well to have if only having a couple of lights. This and a Klarus G35 or an Olight M2X-UT Javelot and a guy would be pretty well fixed. (or gal)

Not really. The side switch design is all wrong. You need a light with a seperate switch, not one built into the driver.

I was searching this forum for a 26650 flashlight and settled for the sofirn one but apparently that model has been recently upgraded.

Those are the notable differences I found.

※ Emitter: CREE XHP50.2 LED

※ Working Voltage: 2.8V-4.3V

※ Battery Options: One 18650 Li-ion battery or single 26650 battery

※ Dimension:128mm (length)*37mm (head diameter)

※ Weight: 150±2 gram (without batteries)

※ Aerospace grade 6061 grade aluminum alloy, CNC manufactured to hard-anodized anti-abrasive finish to get solid built body, anti-crash geometry and better heat exchange.

※ Toughened mineral glass lens; Orange peel reflector

※ The waterproof level: in accordance with IPX8 (Ingress Protection X8- resistant to submersion up to a maximum depth of 2 m underwater for up to 30 minutes)

※ Mode Memory: It memorizes the last brightness level used in the general modes (except Strobe and Turbo)

※ Advanced Temperature Regulation (ATR) technology: ATR will adjust the brightness automatically when the temperature reaches 55℃ (131 °F) to prevent overheating.

※ Automatic Step-down: Turbo mode steps down to High mode after 2 minutes of working to prevent overheating.

Step-down and Advanced Temperature Regulation (ATR) coexist.

※ Power Indicator: The LED indicator on side switch displays Green for 5 seconds if remaining battery power is good. The indicator is Red, if battery power is poor. Red Flashes indicates extremely low power - replace or recharge battery as soon as possible.

※ Reverse polarity protection from improper battery installation.

※ High Voltage Protection: The light cannot turn on if the voltage was over 5 Volts

※ Low Voltage Protection: the light turns off automatically when the voltage was lower than around 2.6 Volts; The Turbo will be disabled autocratically when the voltage is lower than 3.4 volts; It steps down to lower modes automatically when the voltage is lower than 3 Volts

Has anyone else noticed or reviewed the updated version ?

Thanks for your time

Yes, I recently became aware of this updated version when Sofirn asked me to translate the new manual into German language. AFAIK it's more or less some kind of a "silent relaunch" with the new XHP50.2 version and according to their webshop on AliExpress it has started to roll out this month. I have purchased it for something like $ 23,- which is in my opinion a really nice price. They might also offer it on Amazon later on both with and without battery and charger just like they did with the C8F 21700 but this is yet to be confirmed by Sofirn.

Thanks for the heads up, hadn’t seen that. :wink:

About how many lumens does it put out with the new XHP50.2?

What do you think the change in emitter will do to the hotspot?

I’m becoming more and more interested in 26650 lights. This could be a nice addition.

Ehhhh, about that.

The XHP50.2 is going to be a tint mix of the rainbow. Not as bad as an XHP70.2, but still worse than the XHP50.

So around 2250 lumens that it would output I reckon.

Yeah, I’d rather have an XP-L Hi pushed hard but nobody asked. The XP-L2 and XHP-50.2 are flip chip technology, as such they can be sliced and diced to improve the beam profile but it’s sort of tedious work… not horrible but better to not have to.

What about cut the dome of 50.2 will the tint get better beside more throw?

Thanks for the info.
I’ll still keep this one on the radar.

You have to slice the dome off close to the phosphor and then cut the phosphor and silicone off the sides, where it overlaps the substrate. This is the part I call dicing because it’s a vertical cut. This leaves the bare die on the substrate with no extra phosphor to pollute the beam, pretty much eliminates the bad aura, but costs some lumens in the end as is typical of a de-dome or slice.