... Electronic Warning siren, warning sirenSiren,Vehicle Siren,Speaker sirenSpecification: Model: HZ-9000Voltage: 12VPower : 300-600wImpedance: 4Ω,6Ω,8ΩInput Current: 30 ... Temperature : - 40~ +55Humidity : Less than 95%.Siren Frequency : 420Hz ~1770 Hz.Light line Current : 15AFuses : 15AFeatures: 1.the output a total ...