I’d like some explenation on the pcb also. How did you fix it, cause on the pic it looks like + and - are shorted with solder ? I’m guessing the mid stroke of copper on pcb is - and the 2 outsides are +.
Cool mod tough. How do the COB LEDs compare to cree/nichia led in a mule setup?
The one with 6 of these LEDs on them was a XM-L board, the one with 8 (in the light) and the bare one were XP boards.
Some of them have that long centre pad (you say “mid stroke”), which is ideal for this purpose.
I just sanded off the masking paint.
:+1: Exactly.
They have practically no tint shift, so everything is the same tint, both in front of you and to the sides.
My other headlamp (which is starting to wear down a bit) has a single 219C and does have a little more yellow on the outer perimeter, even with diffusing optics.
Yeah, it looks like it, but it’s not so.
There’s just very little space left when you put 8 of them on it.
In the picture with 6 on it you can see better.
So i soldered a jumper over the outer pads, where the red wire is soldered on to.
low, high, off. e-switch.
Long press for ramping. First long press increases, second long press decreases output, would be better if it decreased the first long press.
No ramping memory.
double click for strobe.
Not perfect, but no PWM. :+1:
Well, i use a headlamp daily.
Together with my reading glasses it makes me see very well what i’m doing.
With external lighting there’s always shadows cast on the things i’m working on / with.
I’ve found a lens that fits (after some filing) too, to finish it off, but haven’t found a proper way to hold it in place yet.
Very nice headlight build. I also love hi cri mule 18650 headlights. I’ve always used nichias. I’m not familiar with the emitters your using. They are cheap enough to experiment with some. Thanks for bringing these to my attention. What would you guesstimate the lumens on high is?
I’m not sure, but the little LED goes green when it’s fully charged.
Good question though.
I’ll have to (finally !) replace the fuse in my DMM and test this.
I really don’t know that…
Those LEDs are rated 0.5 Watts and 47 Lumen, but maybe it’s lower because these are high CRI.
But then again i’m using them on lower power than 0.5 Watts each, so they probably work a little more efficient, especially on the low mode (which seems to be without PWM).