Pros: Well It was easily sautered in because it fits in a AA pill esp. Romisen G-2. The mode is a bright high maybe 700-800mA and a low maybe 350mA not to low though as i would of liked. A slow strobe, then fast strobe, then that annoying 10-sec beacon yes 10 second not SOS. Its a 3.7volt input, I tried 1.5v no luck oh well. I tried this one after another driver with the brass spring broke (IC Chip underneath broke it was 17mm)

Cons: Limited voltage but try a 14500 and it will work great. Looked thin almost transparent but works great.

Other Thoughts: Gives my UF 502B R2 a run for its money. I cant believe I created a little throw monster. Maybe more than 250 lumens

Bottomline: A good driver definately close to advertised "1000mA". Try it you'll love it. 5 modes better than 20 modes simple and no need to sand down even fits AA pills by depth too.

Pros: Does what it's supposed to, lights up an LED from lithium batteries.
Has five modes, high/low/slow strobe/fast strobe/really slow strobe.
Runs cool, even pumping a low 70% to the Cree Q5 LED's, they still get brutally bright.

Cons: Doesn't provide 1000mah, and really, it never could with only one transistor.
The best one draws 700mah from the battery, and that's the one that broke partially. The other chip draws 600mah.
It worked a week, and then strobe and low modes stopped working, it "pumps" in a strange way on all but high mode.
Low mode flickers considerably, <60hz and isn't really useful as a flashlight if the flashlight needs to be a worklight.

Other Thoughts: SKU7612 is a better chip, at least on the whitepaper, as it should work better with three transistors.
DX should try to get hold of simpler two-mode chips, as low and high is usually all you need.
When you need to switch modes back and forth, it gets real annoying after a while.
This doesn't provide enough current, and possibly a Q5 will in fact overload the chip, seeing as one broke after a while.
May be better suited as a 700mah part.
I'm using a calibrated fluke multimeter, and my readings should be accurate.
The pre-soldered cables was nice to have, as these boards are ridiculously small.
If you have anything but a soldering station with a needle tip, you won't be able to solder on these.

Bottomline: It pretty much does what it's supposed to, albeit the specs are exaggerated, the five modes do work as intended.
It provides a LOT of light, even when not pumping enough to a Q5 LED.
In short, it works pretty well for a cheap and small device.

Pros: nice and cheap ive ran it on 4.5 volts with a cree q5 xre. the different modes are pretty good.

Cons: dont know if it ouputs 100mah but the cree emitter is still pretty bright. im new to flash light modding so i cant really elaborate on that. i dont think it regulates the current.

Other Thoughts: optimum voltage is 3.6 volts but it will run on higher i bought it to test with some cree emitters. currently working on a video light for wedding filming with somr cree q5 xre so i tested this board its prety good.

Bottomline: cheap circuit board for flash lights!!!!!