Features: 1. High-precision LED digital display, intuitive and clear. 2.8 cm smart fan, excellent heat dissipation, practical 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. Technical parameters: 1. Input voltage: 220V 10% @ 50Hz 5Hz 110V 10% @ 60Hz 5Hz Switch or a single voltage input 2. Output voltage: DC 0- Ratings V (see Table I) 3. Output Current: DC 0- rated A (see Table I)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 MinuteInput - Housing: 1.5KVAC / 1 Minute Output - Housing: 500VAC / 1 Minute 14. Ground Resistance: Package List : Power * 1Power cord (EU / UK / AU / US) * 110A output line * 13A output line * 1Manual * 1Box * 1 White 30V 10A 60V 5A 120V 3A Black 30V 10A 60V 5A 120V 3A