this is a universal power supply with an adjustable output voltage (3V / 4.5 V / 5V / 6V / 7.5V / 9V / 12V) to power many small electrical devices. Included in the set are different output connectors, which can be connected to the output cable with the desired polarity. this is a universal power supply with an adjustable output voltage (3V / 4.5 V / 5V / 6V / 7.5V / 9V / 12V) to power many small electrical devices. Included in the set are different output connectors, which can be connected to the output cable with the desired polarity.
