True. I don’t see much difference from Roche f12. And F12 does not have visible PWM for sure. But F12 has a higher low (around 50lm I guess). This new one has a green clickie, which does not go with the golden body IMO.
Hey, nice host, Hank
Have a question though: what’s the difference between those drivers? Nanjg 101-AK-A1 is just a one sided Nanjg 105C and less 7135 chips? Everything else is the same?
You have this beauty with clip Don’t know what driver does it have though
actually this one. The v2 nanjgs use 380ma chips and have nicer mode spacing and come in 4, 6 & 8 chip versions. KD isn’t the only place that sells them though they were the first.
PWM
Pulse Width Modulation. A technique of varying the brightness of a LED by flashing it on and off very quickly, making it appear to the eye that the LED is dimmer. Good PWM is at such a high rate that you can’t notice it. But if you wave your hand in front of the light and get a strobe effect, the PWM is getting too low. Some use current regulation which makes the light dimmer without PWM and is also more efficient.
Here is a link that you might find useful that has some of the words and stuff related to flashlight stuff
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The problem with PWM is that it drives to led to HI then Off. On High, the led is less efficient than at a lower current level. Just because it is off for a small period of time does not mean the average brightness, as seen by user, is not lowered. I believe the bottom line in the CPF forum was that PWM is NOT the most efficient approach, because of this principle. I am wondering why this technology persists in drivers?