Super reliable, stable, and noiseless output (no "hash")
These are commercial-grade, almost indestructible power supplies, used in traffic signal cabinets and other harsh locations to provide stable, clean , regulated DC. They're somewhat variable within a range of about 25%. They also can provide a higher than rated current for long periods of time, depending on the ambient temperature. You can't go wrong with these. I have several in my HAM shack.