Description:  USB 2.4W, QR50C DC Female Plug 6W, ultra-quiet mini brushless DC water pump.    Specification:  Color: Black.  Pump material: PC + ABS.  Temperature resistance range: 0 ~ 100°C.  Condition of use: Continuously.  Fluids: Water, oil, gasoline, acid and alkali solution, etc.  Outer diameter of inlet / outlet: 8mm/0.33in.  Inner diameter of inlet / outlet: 8mm/0.33in.  Type: USB.  Rated Voltage: DC 5V.  Rated Current: 480mA.  Power consumption: 2.4W.  Max. Flow Quantity: 250L/H.  Max. Lift: 200cm/6.56ft.  Noise: Less than 35dB.  Waterproof Class: IP68.    Type: DC Female Plug.   Rated Voltage: DC 12V.  Rated Current: 500mA.  Power consumption: 6W. Max. Flow Quantity: 300L/H.  Max. Lift: 300cm/9.84ft.  Noise: Less than 35dB.  Waterproof Class: IP68.     Features:  This is a compact size submersible water pump(none self-prime). It can be used inline or submersed  for water pumping. It's built by a brushless motor providing smooth and quiet operation than a non-brushless water pump. 1. Brushless, permanent magnetic rotor, maintenance-free.  2. Stator and circuit board sealed by epoxy resin.   3. Amphibious design.  4. Enclosed with static sealing, not dynamic, which can avoid leaking problems.  5. Small size, high efficiency, low consumption, low noise (less than 35db).  6. Wide temperature resistance range from 0°C to 60°C.  7. Used in Aquarium, car cooling, humidifier, air conditioner, other cooling and circulation systems.     Package Included:  1 x Brushless DC Pump.  1 x Adapter Plate