Lab variable power supply

I had a 5V/10A switching power supply laying arround in my lab so I decided to put it to work. This variable power supply is made from a variable step-up/step-down DC-DC converter, the 5V power supply, 2 10K potentiometers for setting the voltage and amp respectivly, a 5V USB plug straight from the power output and a cheap chinese volt/ammeter.