Excellent Quality. Short Circuit, Over Voltage & Over Current Protection Incredibly Low Fault Rates. No Minimum Load. High Efficiency & low energy consumption This power supply is a regulated Center Positive. power supply It’s plug design is for Indian power socket so, no plug converter is required Compact size & light weight High Reliability Regulated Stable Voltage Good quality SMPS Based Adapter Stabilized Output, low ripple & low interference Single Output Voltage . 9V 1A Power Adapter Input and output: 100-240V AC input 50/60HZ, DC 9V 1Amp output, 9W maximum power.Wide voltage input, in line with global standards.