Technical Parameter Character ModelZL32-13 Working Voltage RangeDC: 6V-24V Rating Power6V: 2-6W / 12V: 3-6W / 24V: 4-7W Static Water Head0.6-3 M Static Flow Rate0.8-2.7 L/min LifespanContinuous operation under normal surrounding >20000Hr Working EnvironmentLiquid: From weak acid to weak base?workable both on land and in water (Submersible) Max NoiseUnder normal working status, 1M distance over test instrument