Permanent magnet brushless permanent magnet rotor, maintenance free. Stator and circuit are sealed with epoxy resin. Amphibious design. Static sealing, rather than dynamic sealing, can avoid leakage problems. Small size, high efficiency, low power consumption, low noise (less than 45dB). The temperature range is 0°C to 60°C. Used in aquariums, refrigeration, humidifiers, air conditioners, other automotive refrigeration and circulation systems.< /p>