Product Parameter: Character ModelZL38-11 Working Voltage RangeDC: 6V-24V Rating Power6V: 2-12W/12V: 3-18W/24V: 5-25W Static Water Head1-7 M Static Flow Rate4-10 L/min LifespanContinuous operation under normal surrounding >20000Hr Working EnvironmentLiquid: From weak acid to weak base, workable in water (Submerged) Max NoiseUnder normal working status, 1M distance over test instrument