maybe 20$ more when using buck driver and white flat led, but not anyone willing to spend more 20$ than stock one
my wild guess this light is 5-10 bucks more expensive than stock d1s
Tried this led with D1. It simply doesn’t have good enough reflector. It top half and bottom half has a little different focal point whith doesn’t matter with larger led like XP-L HI. I played with focusing for hours.
It can’t get any better than this.
Judging by the picture, it seems the LED sits too far forward relative to the reflector.
I can see the beam get narrow half way and then get wider again.
Looks like you should try some extra shim between reflector and LED board.
Trust me I tried everything.
If I move reflector up then the beam starting to get parallel-ish but the corona starting immediately getting huge amd brighter and the hot spot also getting bigger and dimmer. Like the reflector has two parabolic curve.
I can’t explain it better. Maybe with this image help. This is with XP-L HI. The edge of reflector and the area around close to the led is in focus. But If I go farther the white area getting yellow and the yellow area near led getting white. With white flat it is more noticable.