1. Power Input: DC 9-14.5 Volts 20Amp
2. Voltage Output:
a).  DC 5 Volts
b).  AC 220 Vol, 300W
3. Output Wave Form: modified sine wave
4. Continue Power Output: 300w
4. Surge Power: 600W
5. Frewence: 50Hz, +/-4 Hz
6. Working Situation: 0°C~40°C,10%~90%RH
7.  Storage Situation: -20°C~85°C,10%~90%RH
8. Working Altitude: below  3000M
9. Linear adjust rate: ±0.5%max
10. Temperature Coefficient: ±0.02%/°C
11. Start Time: ≤1s(12.0V)
12. Guard Time: ≥20ms(12.0V)
13. Voltage Ripple and Noise: <1% of oupot voltage