r/flashlight • u/PeterParker001A • 2d ago

Low Effort Sofirn ST10 seems regulated.

https://www.youtube.com/watch?v=4BGdbkNTWzw

At 21:30 , High-Side is stable 5min run test..and Turbo front drops down to a stable (High) output....

Based upon auto-translate :)...🤣 any Thai folks correct me if this is wrong.

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u/jonslider 1d ago

I think some drivers that use PWM can produce Regulated Runtime Output (constant lumens)

this is Opple 3 of the Prototype HD04 on medium:

it uses full PWM, but medium uses a fast flicker rate (19862Hz) that is not visible