Good product and very quick delivery. The power supply works with voltages as low as 5v, which gives an output of 2.3v max. The current can be adjusted with steps of 10mA, but is a bit jittery at the minimum of 10mA. It is one of the earlier models (the newer ones do not boot with 5v input) so the ui is not as refined as with later models. But as I said, since it boots from 5v it is good with low voltage applications, and that is the main reason why I got it.
As described, fast delivery and excellent packaging. Excellent products, recommended.