I haven’t seen it in person yet, but I’m thinking the CRI is the weakest point. I really didn’t think I would care much about CRI, but after seeing the SST-20, I find myself slightly irritated by the hazy look of lower CRI light.
Yes it is very normal for CCT and tint (DUV) to vary that much. In fact this light is one of the more consistent ones except for the moonlight mode.
My TA light tube is calibrated with Maukka lights but I seem to be measuring on the low end of everyone with the same setup. The only manufacturers that I consistently measure higher than their official rating are Olight and Fenix. Emisar is “usually” pretty spot on and sometimes higher or lower. All other manufacturers including Acebeam, Zebralight, Thrunite, Sofirn, etc. “usually” measure lower in my lumen tube than what they spec.
I think I will pass on this light. The tint seems cold and the CRI is low. From what I have read on here this is not ideal. Also it does not seem to meet specifications.
I received my SP 33 V3 yesterday after a long wait.
When I first took it out the package I was wondering how heavy the flashlight was. Then I unscrewed the tailcap just to find a Sofirn labeled 26650 cell in there. The black one with 5500mAh printed on. (Flashlight ordered on Banggood)
The looks of the flashlight are better to me in person than on the pictures. Looks and feels good (very good grip)!
The beam is not pleasing to be honest - but it’s okay. Brightness is fine, probably under 3500lm as stated before. U.I. is super simple and the switch feels good.
I tested the Sofirn 26650 cell and it seems to be a fine one.
Internal resistance about 0,23mOhm
Capacity test showed me 5430mAh
Well filed a dispute today. Bought from ali store and my messages were unanswered for 3 weeks. Status was shipment cancelled. Tried contacting Sofirn via many ways. Got two answers saying that they dont run the aliexpress store and thats it. I never got my SP33v3. Was really looking forward to this light. But no I will probably never spend a dime to Sofirns direction. Atrocious customer service!
Found a review of the SP33 v2.0 on Zeroair and shocked at how VERY efficient it is. The driver efficiency is on the level of Olight, Fenix, Nitecore, and Zebralight! Wow
Sofirn should continue to sell v2.0 alongside v3.0 because some people would prefer the super efficient driver and perfect regulation.
Have a SP33v2, swapped emitter w/ 5000ºK (damaged led in transit). Best budget light for sustained high. Great UI - low/med/high w/double click for temporary turbo. Long press from off for Moonlight (~ 10 lumens), just right for a evening walk.
I lose mine at 3.70 volts. Dirty connections can have an effect. Boost drivers need as much voltage as possible so you want to make sure the circuits are clean with no extra resistance.
You have the driver ring, both battery tube ends, the tail cap to battery tube area, pop the spring out and clean the pocket, clean the spring, clean the battery ends. I think that’s all.
Have you tried different batteries? I’m not certain, but battery voltage sag might play a part. I use the Shockli 5500mah as well as Aspire 4300. The Shockli seems to work better since the amp draw is not that big at 6A.
I have not had a reason to bypass my springs, but that’s something you might consider. It might give you longer cumulative Turbo runtime.
Although you might already tried it. I’ve had so many lights that loses turbo shortly or immediately and it is fixed after washing the tube and head with detergent and cleaning the head spring or contact with rubbing alcohol. I’ve had many lights including Thrunites that had black grime on contacts that require much rubbing with finger nail to remove. Fixes turbo problems and low output almost every time.
So, the big question is, is the V3 at $30 a better light than the V2 at $20? Even if money wasn’t part of the equation, is the V3 really better than the V2?