1.Automatic Power Calculation Different from other dc power supplies, dc power supply can automatically calculate the power value according to the voltage and current, but also can simultaneously display the 4-digit voltage, current and power values, numerical accuracy of 0.01V and 0.001A. 2.5V/2A USB InterfaceThe variable power supply has built-in fast charging protocol identification chip that supports USB fast charging function, which is different from the ordinary USB charging interface in that it has a 5V/3.6A output that can quickly charge your mobile phones and or other devices or be used to charge the device to be repaired. 1. High-precision LED digital display, intuitive and clear. 2.8 cm smart fan, excellent heat dissipation, effectively extend fan life and reduce noise. 3. The use of advanced technology to effectively reduce the weight of the power and convenience of mobile power. 4. A variety of protection, current limiting protection (OCP), over temperature protection (OTP), Over Power Protection (OPP). 5. plastic panels, more beautiful, voltage, current, coarse and fine adjustment knob to set the settings to be more precise. Application areas: . Car DVD, Car Audio. . Aging products, such as resistors, capacitors, relays, DC motors, LED and the like. Laboratory, factory, repair power supply. Other DC power supply all the needs of the occasion. Technical parameters: 1. Input voltage: 110V 10% @ 60Hz 5Hz Switch or a single voltage input 2. Output voltage: DC 0- 30V 3. Output Current: DC 0- 5A 4. Display Accuracy: 1% 1 word (three / three and a half digital display, voltage resolution 0.1V, current resolution 0.1A) 0.1% 1 word (four / four semi-digital display, voltage resolution 0.01V, current resolution 0.01A) 5. boot delay: 1-2S Shutdown Delay: 1-6S (depending on the load) 6. Voltage Stability: 0.05% + 1mV 7. The current stability: 0.1% + 10mA 8. Load stability: CV0.05% + 1mV CC0.05% + 10mA 9. Ripple and Noise: CV10mV CC20mA (RMS) 10. Overall efficiency: 80% (under full load test) 11. Working environment: -10 - + 40 Relative humidity 20% -80% (non-condensing) 12. Storage Environment: -20 - + 80 Relative humidity 20% -70% (non-condensing) 13. Pressure test: Input - Output: 1.5KVAC / 1 Minute Input - Housing: 1.5KVAC / 1 Minute Output - Housing: 500VAC / 1 Minute 14. Ground Resistance: