Flow Rate (GPH): 750GPH; Volt: 12V; Current(A): 3A; Head(M): 3.0M. Built-in float switch! (No separate float switch is needed). Automatic mode connection :Contect black wire to negative,Contect brown white wire to positive,,brown no wiring.Non-Automatic mode connection :Contect black wire to negative,Contect brown wire to positive,,brown white no wiring.