Haiku, PWM rates, changes?

gunga · Aug 8, 2012

Hey all.

I have an XRE Haiku (now nicely modded to XML) with somewhat noticable PWM (shake light head, look at emitter etc). I also noticed this when I was looking at a High CRI Haiku. I have been informed that there might have been a change in the drivers at some point to reduce/eliminate the PWM.

Does anyone know about this? Has anyone measured the PWM rates?

fyrstormer · Aug 8, 2012

Older McGizmo 3V light engines had noticeable PWM. In the newer light engines, the PWM is too fast to see.

gunga · Aug 8, 2012

Can you define "older"? How much was the change? Any actual frequency numbers?

nbp · Aug 8, 2012

I never notice it in my XP-G Haiku, although it's supposedly there. Maybe I'm just not sensitive to it.

fyrstormer · Aug 9, 2012

Older = before Don said he would be using an upgraded driver in new flashlights. :devil:

XR-E Haikus are all too old to have the upgraded driver.

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Haiku, PWM rates, changes?

gunga

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gunga

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nbp

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fyrstormer

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