Jebao DCP-10000 Sine wave water return pump Enhanced performance and precise control of flow through your aquarium’s reactors, sump, or closed loop system. With complete control through the DCP Controller, you can control the flow of the pump, enter feed modes (10 minutes), Motor Protection if the rotor is blocked. Using Sine wave technology Super Quiet Operation and Memory Function for Power Supply Off to recall memory No copper components. Wear resistant ceramic shaft, longer operation life. Improved from the DCT model High performance motor with innovation electronics, and energy saving up to 50% than old model Use in freshwater or marine. Use in water or out of water. Electronic Detection: Pump will power off if it runs dry Pump will power off if rotor is jammed