This is a mini size submersible water pump. It's equipped with a brushless motor providing smooth and quiet operation than a non-brushless water pump.

Features:
Brushless pump, permanent rotor, maintenance-free.
Enameled wire coil and circuit board are by epoxy resin.
The coil adopts pure copper enameled wire, lower temperature rise and longer span. 
Amphibious pump, you can use it in the water or out of water(follow the installation instruction).
5.5*2.1mm female DC12V for power input.
IP68 waterproof grade, totally submersible in the water.
Detachable design, providing convenience for cleaning work.
With a filter, avoiding blocking the inlet.
4 rubber suckers on the bottom, can adsorb on the smooth surface and reduce noise and .
Small size, high efficiency, low noise.
Suitable for aquarium, fountain, car cooling, water cooling system and circulation systems.

Note:
1. Please check the voltage and of the pump before on. 
2. Please cut off the before you install/put in/take away the pump from the water; otherwise, the pump can't water due to the air in it.

3. It can be used in the water or other liquids(without particles and impurities); NOT for viscous and acid-base liquids.
4. DO NOT dry burn the pump, otherwise it would be damaged.
5. Switch on-off the repeatedly for several times to eliminate the air in the pump impeller and the .
6. When the pump is used in high temperature environment(100°C), it can only be installed with non-diving method.

Specifications:
Model(Optional) QR50C QR50D
Max. 6W 10W
Max. Quantity 300L/H 400L/H
Max. Lift 300cm / 9.84ft 400cm / 13.12ft
Max. Current 500mA 830mA
Rated Voltage DC12V
Noise Less than 35dB Less than 37dB
Max. Temperature 100°C 60°C
Lack of Water No Yes
Outer Dia. of Inlet/ 8.5mm / 0.33in
Inner Dia. of Inlet/ 6mm / 0.24in
Waterproof Class IP68
Material PC + ABS
Cable Length 150cm / 4.92ft
Product Size 59.5 * 49 * 42mm / 2.34 * 1.9 * 1.65in
Product Weight 92g / 3.25oz
Package Size 6.5 * 6 * 5.4cm / 2.56 * 2.36 * 2.12in
Package Weight 104g / 3.68oz

Package List:
1 * DC12V Brushless Pump
1 * Filter
1 * User Manual(English)
H20629-2