Involvement:Expert (understands the inner workings) - Ownership:1 day to 1 week
It works very well with 3x1W LED's, barely warm to the touch. Voltage across led's was 3.1, 3.0, 3.2 at a constant current of 300 mA.
Driver build with AP3706 IC which can provide constant voltage or constant current regulation.
Some SMD parts were not well centered on corresponding pads, but soldering is good and it works without any modifications.
Connecting wire are short(about 5 cm's long), no problem for me, but might be for someone who needs longer connecting wires.
Good and inexpensive LED driver, also small for any LED diy.
If you need a small, inexpensive, good driver BUY it.
I will buy some more soon.
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