Details FL 158P H/L Voltage: (V) 12-24 Current: (A) ≤4 Frequency: (Hz) H=510±20 L=410±20 Sound level: (A) 105-118 db Diameter: (mm) Ø92 Applicable for cars 12 cars universal Certified TS16949 ,ISO9001:2000, E-MARK CCCNational Security Certificate Remarks: Disc type horn, novel design, good quality. 14 months warranty, Delivery on time, Good after service. For more details, please feel free to contact me!