I've got a KPS605D, older 60V 5A model. It's a cheap supply, not much to say about it, the coarse knobs are too coarse, and the fine ones a bit too fine. The 3-digit meter is pretty limiting, and inaccurate to boot (the difference between 4.1 and 4.2V is annoying when dealing with low voltage), going to replace it with a better 4-digit meter I'm waiting on. It also makes an awful hissing noise when in constant current mode, guess the switching PSU doesn't like that much.