XPG R5 Cr123a/16340 flashlight from fasttech. No label Generic

Got this little bugger from fasttech. It has an ak47a driver with 3x7135 amc but it will not run in high on a CR123a. It will run on high for about 4 seconds and then it goes to the low mode and blinks every 2 seconds. Is this one of those lights/drivers that will only run with 3.7 volts from a 16340 rechargeable?

It does have good machining and anodizing.

http://www.fasttech.com/products/1601/10007115/1580800-1-cree-xp-g-r5-3-mode-370-lumen-neutral-white-edc

Nice looks like a mini Convoy S5!

Not sure about the cell issue. Think the AK47a is 2.6-4.5v input.

You know, it does have good anodizing that is almost exactly like the convoy finish, nice smooth flat finish with just a little bit of shine.

It looks like a nice flashlight (very similar to the Ultrafire 602c), even nicer that it has a neutral white led and a low/med/high Nanjg lineair driver. But unfortunately these drivers do not work on cr123 primaries; the led voltage is higher than the battery voltage (only for a few seconds it isn't) so the driver needs to boost the voltage. This type of driver does not boost, it is indeed made for (higher voltage) rechargable li-ion cells.

Thanks for the info. I was about to complain to fasttech but I understand now. Then again, maybe i should bitch because I wanted a good budget light that runs off cr123a and this one won’t. They need to update the specs for the light.

The driver is definitely a nanjg. It even has the 4 stars to solder for mode groups.