^ Definitely a lot more expensive than similar lights with something like an XHP50.2 emitter. There is going to be a decent discount with a code, but I recall the light still being fairly expensive at around US $90 (with code).
So definitely not cheap, but I believe it’s a killer emitter.
So also in the Nitecore TM38 the Luminus SBT-90.2 LED has been implemented. Was it worth it? Since the price has now quite increased, what advantages are there in the TM39? Well, now the beam distance goes from 1400m to 1500m! As much as 100m more!!!
Unfortunately, in order to achieve this extraordinary improvement, the output had to be almost tripled (1800 —> 5200) so now the runtime is quite shorter and the light gets hotter. In addition, you can no longer run the turbo indefinitely. These are not upgrades!
But what is the criterion adopted by Nitecore for this new version? $500 for a 1500m thrower when there are on the market some lights that cost half as much and have an almost double-throw (Acebeam K75, Lumintop BLF GT90). Moreover, an increase of 100 meters is not even noticeable.
Warning: the specifications read that the Turbo and High values have been measured by deactivating the thermal control, so we do not know how long they actually last.
Hi Giancarlo, although the design of the flashlight has remained similar, it seems to me that there have been changes, see Oled displays and switches, although perhaps they do not justify the purchase from the previous model.
The TM39 should reach me for the review in the next few days and we see the tops of the discharge curve.
The design of the flashlight is changed enough to become ugly. It lost symmetry. I loved very much the design of the TM38. I really don’t know why they changed it. The TM26 never changed over 10 years despite the LEDs changed four times. What really changed in the TM39 is not the throw but the output, so they had to change the driver and the heat dissipation around the neck and head. Or maybe it was just a cosmetic change.
The TM39 will never be a real thrower if Nitecore doesn’t enlarge the reflector. But they wish to keep the light harmonious as it was the TM38 and not make ridiculous front-heavy lights like Astrolux MF04 or the huge BLF-GT or the horrible Imalent R90C. It is a dilemma. I think Nitecore renounced longer beam distances for a more proportioned light. Probably they changed the LED in order to have a larger hotspot and more corona.
The new design will have lost symmetry but I don’t mind. It seems to me that Nitecore has tried to update the LED with this new TM39 while maintaining compactness without exceeding in size. And if the declared 1500 meters are real it seems to me a good result. I saw a video of TM39 in action and I really liked it. It seems to me that they did an excellent job on the optics of the new flashlight combined with the high-performance LED LUMINUS SBT-90 GEN2.
Pls, can you send the link of the video? Thanks.
It has finally arrived. I did a luxmeter test at home over a distance of 10 meters. The values obtained are clearly higher than those declared by the house. In Turbo I measured 824000cd.
What version did you get?
The Nitecore TM39, we are talking about this. I hope my calculations are correct, I have to take an outdoor test.
Wow! How long does the turbo level last?
Hi Giancarlo, starting from level 4 (Turbo 5200 lm) the TM39 goes to level 3 (2000 lm) after 4 minutes and to level 2 (800 lm) after 20 minutes.
Very good! 4 minutes is a lot of time compared to the Acebeam K75 which only has 90 seconds of turbo runtime. Also, 20 minutes at 2000 Lm is quite good. Thanks!
In my opinion, the Nitecore TM39 has one of the best static cooling systems (fins). Then consider that the test was done indoors without forced ventilation. With ventilation things change. Soon the review.
I think these are the future, but I dont like the prices. If anything, prices should go down as tech improves and matures. Look at the BLF GT. It’s still too expensive for my liking, but a lot cheaper than these. All else considered I think you’re paying for the novelty of the display (like Imalent) and design, not performance. There are cheaper options that do as good or better.
That’s a real mess inside! Like brain surgery. You’d need to be real careful when digging around in there. I don’t th9nk they designed this thing to be messed with, but it’s nice they didn’t glue it together.
Actually they did make it easy to mess with…
. IF you look at it closely, most of it is plug and play. I had it in and out several times for practice, made many pics of it and dialed in the assembly process.
. The most difficult task(s) is making the connections once you have it routed.
. That whole mess, minus the thick copper plate is in a zip-loc bag in case I want to put it back together?
. Only the LED read out board, NTC and Main leads need to be soldered. The LED read out was the hardest connection to make, it’s easier just to un-solder the board.
. Not a big deal at all, because everything is match marked/tagged and I mean everything.
. Top Notch Quality it is… 
On Aliexpress the TM39 Lite costs $290 and the BLF-GT90 $332.
Anyway, I think that the new TM39 makes no sense as it almost triples the output of the TM38 (1800lm —> 4600lm) increasing the throw by only 100m, an increase not even noticeable to the naked eye. But the higher output warms the torch and drains the batteries. Furthermore, the turbo runtime is shorter, while in the TM38 it was almost undefined.
Michael measured 889Kcd which is 1885 meter ansi throw with 5850lm after 30 seconds. Much better then the advertised 1500 meters.
Why should Nitecore declare less than the real cd??