Car Siren for warning, car siren Specification : ModelAS-940Power300-400WVoltage12VImpedance4Ω,6Ω,8ΩInput Current30 A&13.6VDCStand by CurrentLess than 150 mA Operating Temperature-40 +50Siren Frequency 420H 1770 Hz Light line Current 15A Features : high quality,Typically for polic car ,emergency ,rescue and project use . Weoffervarious kinds of Sirens,which are suitable for allof the cars.If you interested pleased feel free to contact us for more product information. 6