Creazy&reg; DC12V 3m 240L/H Ultra Quiet Brushless Motor Submersible Pool Water Pump Solar Brushless, permanent magnetic rotor. Super long working life(more than 30000 hours). Adopt high performance ceramic shaft. The axis is enclosed with static sealing, not dynamic, which can avoid leaking problems. Size: 5.5cm x 3.5cm x 4.5cm. Water proof class: IP68(can be submersible installed). Power supply: Solar panel, DC electric source, battery.