This adaptor is designed for use with most battery-operated products that have a DC jack.
e.g. CD Players, Radios, MD Players, Calculators, hand held games, toys etc.
This power supply with output voltages of 3V, 4.5V, 5V, 6V, 7.5V, 9V and 12V, selected via a top-mounted switch with polarity reverse switch.
Check the voltage requirements of your equipment by referring to the manufacturer's manual. The adaptor will power equipment requiring a single DC supply voltage up to a current consumption of 1500mA. If the voltage setting possible and increase until the particular equipment operates. The DC output voltages supplied by this adaptor are clearly marked by the voltage selector switch.