Specifications: Max. Input Voltage: 12V DC Max. Input Current: 500mA Max. Power: 6W Fluid Temperature: 32~149?(0~65?) Flow: 2L/min Wire Length: About 50cm/19.7in Wiring: Red(+); Black(-) Noise: ?35dba Fluid: Water Inlet Diameter: About 9.8mm/0.4in Outlet Diameter: About 6.8mm/0.3in Weight: 64g(approx.) Package Includes: 1 x Water Pump Note: Please allow small size error due to manual measurement. Thanks for your understanding.