I finally found a converter that was suitable for my McGizmo Haiku. I love this light so much, but the one thing that bothered me was the slow PWM rate on the low mode. I also wanted a higher high. This is not going to be a tutorial, but more of pictures and results, but unfortunately, i didnt take any before pictures, and i only have the one Haiku, so i have nothing to compare it to........
Anyways, i also wasn't a fan of the cool white tint, so i decided to use a Cree XPG Q4 80CRI:
I decided to us the GDuP High output converter from the shoppe:
Yes, it is a bit pricey, but this was the only driver i could find that was 14mm in diameter, 3 speed, and had the 1200mA high mode i was looking for. I emailed Don about the converter he uses for XML, to see if i could use it with an xpg, and he recommended that i use this one.
Here is the new converter.
Heres the new converter (right) next to the stock converter (left)
after adding wires to the new driver (very carefully, the connections for the leads are very close together)
After connecting the new converter to the contact pcb.
New LED reflowed onto the board, and lead wires soldered on, I also added some arctic silver on the portion of the can where the PCB sits. When I first disassembled the light, i noticed that the board was not a normal white color, but a slight tan-ish yellow color, so i made sure to test it out before hooking it up to the converter, and it still works, so Im assuming its just a discoloration of the coating of the PCB.
It does seem to be quite a bit brighter, but also has a lower bin emitter, im sure i used a cool white LED it would be much brighter!
And thats all! Still not dark yet, so ill get some beamshots a little later........
Thanks for looking!