Boruit Headlamp Review D10 (aka. EHL0628) - King of the Budget Headlamps?

[Agro]

@gchart

@Wildcat

The output appears to be constant

No. This flashlight has a FET driver, so the brightness will change as the battery runs out.

Correct, the driver has two (parallel) FETs with current limiting resistors to control the output. Driver pic and runtime charts here

PS - I swapped the MCU on mine for an attiny412 running RampingIOS. It’s a direct swap in for many/most of the D10/D25 headlamps. If anyone is interested in doing that to theirs, feel free to PM me.

I don’t need that (yet?) but I’m curious about this setup.
I wonder why did you choose RampingIOS over the more-common Andruil. Do you simply like it more? Was it easier to port to this MCU for you? Any other reason?
ADDED:
[Review] 77 Outdoors D25 Headlamp (18650) has some discussion. I’ll switch there.