This is a switching power supply that flaunts low standby power consumption. It is engineered to provide a regulated output voltage. This well-made electronic power supply incorporates a switching regulator to convert electrical power efficiently.
9V 1A series External wall-mount switching power supply(AC/DC adapter, AC/DC power adapter), Class II, Universal input, customized design.
Features:

• High reliability
• High efficiency
• Light and convenient plug-in
• LED indication

Key specification:

• Input voltage: 100 to 240V AC, 50 to 60Hz 0.4A
• input current: 400mA maximum
• DC output voltage: 9V DC
• DC output current: 1000mA
• Inrush current (240V AC): 25A, cold 25°C
• No load input power (240V AC): 0.3W
• Efficiency: 75% maximum
• Output voltage precision: 5%
• Ripple/noise: 100mV
• Regulation: ±1% line, ±5% load

​Working environmental:

• Operating temperature: 0 to 40°C
• Operating humidity: 10 to 95% RH
• Storage temperature: -20 to 65°C
• Storage humidity: 10 to 95% RH

Reliability:

• Burn-in: 100% full load, 40°C, 4hrs minimum
• Leakage current: 0.25mA maximum at 264V AC
• Withstanding voltage: 3kV 1minute 10mA max, between primary and secondary
• MTBF: meet MIL-HDBK-217F over 50,000hrs, full load, 25°C

Protection:

• Over-voltage protection
• Over-current protection
• Short-circuit protection
• Thermal shutdown capability