Dimension: 52x52x10mm Rate Voltage:12V Frame and Impeller: Plastic UL 94V-0 Lead wires: UL Type or Equivalent ( + ) : Red ( - ) : Black Operation temperature : -10°C?70°C?35%?85%RH Storage temperature : -40°C?80°C?35%?85%RH Motor Protection: Impedance Protection; Reverse Polarity Protection; Automatic Restart