The Official Zebralight Thread

[this_is_nascar]

Clic to read the whole SC70 driver Analysis posted by thefreeman:

Here are the Cliff Notes:

"Conclusion

To improve this driver, Zebralight needs to:

* get rid of low modes visible flicker

* Get rid of the ~400~1000Hz Riple by increasing the PWM control signal frequency

* fix the low modes startup flash

* Fix instability issue in medium modes"

Well, none of this sounds good.

 

[jon_slider]

data posted by krug1972 shows his Opple measured some SC70 Frequencies (547Hz and 400Hz), that are similar to what thefreeman is reporting: ~400~1000Hz ripple

 

[jon_slider]

Compare and contrast Opple 3 Tint measurement of an early LiIon compatible SC53c N with stock 4000K 519a and a late SC53c N w the new 54 series AA only driver, and Bob_McBob DeDomed 5700K 519a:

Side by side comparison of beam profile and tint:

Stock clip and MGX deep carry clip

A favorite USB battery for 1.5V: