Oh. So if Acebeam decides to not release the X70, then it’s still the king or not? Who knows?
I will wait until the X70 is released and measured against the MS12 before I say which is king. Right now MS12 is king.
Specs are out on X70, looks like it will not run more then 15k continous, 25k at 8min and 60k at 55 seconds!
I think Imalent didn’t invest in real thermal regulation even for this flagship product.
Below is the thermal vs lumen percentage graph of my Zebralight S6330 that I did years ago. It regulate the output so that temperature doesn’t cross a predefined temperature, in this case around 60 degree celcius for external temperature. It actually increased the output when it see temperature dropped enough. But I have no way to know the internal temperature that definitely rise much faster than external temperature, that is why we see the output dropped soon after 1 minute.
Of course they didn’t.
No way you can compare these two brands.
Zebralight uses a very advanced thermal regulation that can decrease as well as increase the output. No way Imalent is using something that advanced.
Anyway, it seems it was a fluke. On the second try it cooled down properly. So Imalent probably has some glitchy software controlling the temps.
Well, both are flagship light of each brand. Zebralight S6330 was selling at $199 without discount. It has lower price from time to time when there was discount. Imalent MS12 is selling at $606 without discount and $390 with discount. There are people who bought lights at full price believe it or not. From price point of view, MS12 is about 2x-3x more expensive than S6330.
Also, S6330 was released 5-6 years ago and already had this thermal regulation technology in it. I don’t see why Imalent MS12 could not have this feature especially it is heat generation monster that its temperature is a risk factor. Sure Imalent will save some cost without R&D on this thermal regulation, but Imalent should provide alternative solution for example making use of fan(s) more robustly, and not just put a fan in there that doesn’t show obvious airflow and call it active cooling feature.
I think it is not a fluke. 1st test was full charge that has more power, that is why the fan kicked in at 2 minutes, which is 1 minute earlier than second test.
To say that both are “Flagship” models is kind of meaningless. It’s like comparing the flagship Mercedes car to the flagship Yugo car. They are very different companies.
There could be many reasons why Imalent doesn’t use a more advanced thermal regulation technology. Perhaps their engineers are not familiar enough to design them? Maybe they don’t think it’s required? Who knows.
I don’t remember the test being at 2 different voltages. Is this the case?
Ya, Flashaholics mentioned it in post #49 above.
Hmmm, a tenth of a volt can make a difference if you’re using a FET driver, but I don’t think the MS12 is using a FET. I’m not sure what type of driver it’s using, maybe a big boost driver?
3rd test at full voltage yielded hot measurements again this was this morning when it was very cold too. 84c head, 56c side of button. Turbo stepped in at 3 minutes though, but the light was very cold at turn on.
I’ll have to do a 4th 10 minute run time test at lower voltage again lol.
The fan does seem to hold the temp once it’s stepped down but it’s at temps that’s too hot to hold without gloves. It might be best running it on the lower modes first before sustaining turbo.
Flashaholics, thanks for testing it out again. Was this 84c at 10th minute or shorter time? I think it is reasonable fan started later than first test since it is colder to start from.
Another great “budget” light!
I started measuring from about 6 mins, 81c to 84c over 3-4 mins etc, heat doesn’t go up that fast once the stepdown occurs. I don’t know if the fan is keeping it stable at 15,000 or the sheer flashlight size.
If we look at Matt’s video review that he tested at just 15000lm, temperature was still increasing after 20min where it reached 70c, also output was dropping gradually to about 11000lumens in the test, I think it’s mostly due to output drop and sheer size of mass, the fan does not help much.
By the way, do you feel obvious hot air flow during your test?
I felt zero air enter or leave the light.
Looks like Imalent successfully design a mini convection oven, in wrong product though :person_facepalming: .
That is why they went with the first Gen 70’s they take longer to COOK…
So they build a light that blinds you with the spill reflecting on the ground, and then they forget to research how you implement a fan…
The bit of airflow outward gets immediately sucked back in by the inlets, apparently…
Ya, i think this one can really cook, 80+ degree celcius external temperature can really cook something. Wonder what would be the internal temperature. :question:
I was thinking this morning could it be the fan spinning too fast compared to prototype. Don’t know why Imalent engineers can accept this kind of active cooling with minimal airflow?
The faster it spins, the more air displacement.
Maybe they forgot an air intake altogether…