Package included:1 piece 12V 600W switch power supply DC Output Range: 12V,0~50A Rated Power: 600W Input voltage: 110V/220V ±15 Percent (95-126V / 185-250V) Range of difference:±1 Percent Efficiency: >80 Percent Output adjustable voltage range: ±3 Percent Frequency: 50-60Hz Leakage current: Temperature coefficient: ±0.03 Percent / Degree C (0~50 Degree C ) Start, rise, hold time 200ms, 50ms, 20ms Seismic resistance: 10~500Hz,2G 10min, /1 cycle, time 60 points, each axis Protection: over-load, over-voltage, over-current, short circuit protection Pressure resistance between input and output 1.5KvAC input and shell; 1.5KvAC output and shell; 0.5KvAC The working temperature and humidity are between -10 and +60, and the temperature ranges from 20 Percent to 90 Percent RH The storage temperature and humidity are -20 +85, 10 Percent 95 Percent RH Size: 220 x 120 x 50mm/8.7 x 4.6 x 1.7 inches Weight: 900g/1.98 pounds Note: This product has a cooling fan to perform a sound (the sound of a fan rotates) The product cannot be used in motors, starting products with current exceeding the rated current.