Product Parameter Character ModelZL38-33 Working Voltage RangeDC: 6V-24V Rating Power6V: 2-12W/12V: 3-18W/24V: 5-25W Static Water Head1-5 M Static Flow Rate5-13 L/min LifespanContinuous operation under normal surrounding >20000Hr Working EnvironmentLiquid: From weak acid to weak base, workable on land (Non submersible) Max NoiseUnder normal working status, 1M distance over test instrument