Voltage:20-30Vdc      
Current:95mA      
SPL: >100dB/1m      
Light: >1.2WS with 2 seconds cycle      
Life time of Light:>30000 OPS      
Color: Re or White      
Amient Temp:-10 +55°C      
Humidity:   95% RH      
Mea(mm):139x114x60      
Coded sound signal: 3-type:      
Simulates the sound of police cars      
Simulates the sound of fire trucks      
Simulates the sound of the ambulance