1、This power supply is DC regulated power supply, the output voltage and current are continuously adjustable 2、4-digit LED display, display output voltage, current and output power, and provide common 5V voltage USB interface 3、The power supply is small in size, high in efficiency, moderate in weight, and can be used for a long time under full power conditions, and the continuous operation failure rate is low. 4、The power supply has various protection functions such as over temperature, overload, current limit, etc. 5、Suitable for research, colleges, factories and other occasions Features: 3. The power supply is small in size, high in efficiency, moderate in weight, and can be used for a long time under full power conditions, and the continuous operation failure rate is low. 4. The power supply has various protection functions such as over temperature, overload, current limit, etc. 5. Suitable for research, colleges, factories and other occasions Specification: Condition: 100% Brand New Model: PS-3010DF Working environment: Temperature: -10℃-40℃ Relative humidity: <80% Storage conditions: Temperature: -20℃-80℃ Relative humidity: <70% Power Supply Effect: CV≤0.1%+10mV CC≤0.1%+10mA Load effect: CV≤0.1%+5mV CC≤0.1%+10mV Ripple and noise: CV≤20mV r.m.s. CC≤20mA r.m.s. Display mode accuracy: 4-digit LED digital display, display accuracy ±0.1% ± 1 word Weight: Approx. 2514g / 88.7oz Size: Approx. 285 * 128 * 145mm / 11.2 * 5.0 * 5.7in Package List: 1 * Power Supply 1 * Power Cord 1 * User Manual Note:New-style and old-style are shipped randomly