AUSL-650B siren&strobe light(BATTERY BACKUP) .P.L. ≤118DB/at 1M/12VDC Operating Voltage 9.0VDC---16.0VDC Rated Voltage 12VDC Rated Voltage 450 MA SCB Mode 25 MA Flash Current 100MA Waiting Current 25 MA Battery Charge Current 20 MA Flash flip-flow 1Hz/at 12VDC Operating Temperature -40°C---+80°C Operating Humidity 95%R.H. at +40°C SIZE: 300L * 220W * 60H mm