Received a Nitecore Tube as a gift with an unknown Warm White High CRI LED
Low mode of 0.3 lm has PWM:
High Mode of 16 lm has extremely low Flicker Index and constant Lux from the LED:
size comparison:
1 Thank
I quite liked my Nitecore Tube, before it died prematurely, I think the diode was damaged as it’s fairly exposed for something on a keyring. I did notice the PWM on low mode but perhaps this one has a different driver as mine was from a good 5 years ago.
I measured the Tube years ago. PWM on low - 500 Hz. With a low duty cycle.
Quite noticeable on moving objects.
On brighter settings the PWM jumps up to 3k and is not noticeable.
The battery inside rattles around sometimes leading to one of the wires getting disconnected. I stuffed something in there to stop that.
All the Best, Jeff
2 Thanks
At 6.50min mark in this video I show the Tube PWM.
All the Best, Jeff
2 Thanks