Input Voltage: AC110V220V Max power: 1000W Output Voltage: DC 12V Output Current: 0 - 83A Net Weight: 1320g 2.9 pounds Size: 250 X 120 X 70mm 9.84 X 5.12 X 2.76 inches Shell Material: Metal case Aluminum case Safety Compliance: High price-effective, reliability with industry standards Built-in over voltage, over current, and short circuit protection. Working Temperature: -10 Degree C - +60 Degree C ,20 Percent - 90 Percent RH Storage Temperature & Humidity: -20 Degree C - +85 Degree C ,10 Percent - 95 Percent RH Difference range: ±1 Percent Efficiency: >80 Percent Output adjustable voltage range: ±5 Percent Frequency: 50-60Hz Leakage current: <1mA230V Temperature coefficient: ±0.03 Percent Degree C 0 - 50 Degree C