is it possible to vary the current output
The only way to vary the output current on this power supply is by adjusting the current that the connected load will draw. For example, if you are connecting the power supply to a motor driver, you can adjust the settings on the driver to control the amount of current it draws from the power supply. If the load does not have an adjustable setting, then it will naturally draw a certain amount of current based on its requirements. If the load tries to draw more current than the power supply's maximum limit, which is 10 amps in this case, the power supply will provide its maximum current output of 10 amps.
