inputs.text: easy use exactly supposed - using drive leds couple aa batteries far working great low input voltage 35v means even small power supply like aas cr2032 lithiumion batteries drive enough leds light small room convenient putting lights hard reach places like workbench inside carthe device solid build quality even printing pcb high quality clear terminals clearly labeled makes easy setup even first time using one knob adjust output voltage sensitive enough fine tune millivolt precision easilyi likely buying future