Driver for XML U2 OEM D4 project

I'm planning to make a flashlight using OEM D4 host from CN Quality goods with more voltage options. I did this with an XML U2 LED and KD 8x7135 driver. I'd like to make them compatible with both a single 18650 or 2 Cr123s. Any driver that will do that? the KD8x7135 is limited to 4.5 V. Works great with 18650 but I'd like the option to use more readily available batteries. driver has to be 17 mm. Like to have 3 amps too. I've searched all over KD, DX and CN quality goods, no luck. The OEM D4 comes with everything except the LED, driver and battery

PVL

HERE you go.

EDIT: not 17mm ... my bad

But this one is, its just sold out at the moment. Email them and ask when to expect more stock, they reply pretty fast.

Found you another one here .

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Wow! thanks, never heard of Fast Tech. Any ideas on a driver with only 3 mode? firefly(something low%)/50%/100%? I'm not a fan of the blinky modes.