Electronic Siren:Output Power:20W;Rated Current:1200mA Rated Voltage:12V DC;S.P.L:108+/-3dB Sound:1-Tone/6-Tone Electronic Siren Features-Output Power: 20W-Rated Voltage: 12V DC-Rated Current: 800mA-1200mA-S.P.L.: 108+/-3dB-Sound: 1-Tone / 6-Tone-High intensity shell, light weight, small size, good quality with excellent workmanship and high reliability