Rated Voltage: DC13.5V(at 12V) Working Voltage Range: 10.5V-14.5V Static Current: í_5mA Rated Current: 16.5Aí+1.0A Maximum Consumption Current: 20A(MAX) Flash Frequency: 73í+5times/Min Light Source Flash Pattern:8 Strobe, 2 Ways of front and rear, Right and left alternate 4 flash. Ambient Temperature: -30ípC--+65ípC Mounting Mode: Supported by bracket, tightening by bolt. Speaker: 100W + 100W(Standard Style) Water-proof Performance: Water-proofing Adopting Japanese imported PC material for dome,compared with domestic material ,it has the advantage as below: ó+Adding Anti-UV ingredient. ó+Adding Anti-scuff agent. ó¦Adding Anti-erosion agent. ó_Adding Anti-innerstress molecule ingredient. dopting Heimann(German Brand) Impulse Xenon bulb. íí Adopting 8 strobes as main light source, 50 or 100W Power supply can be used either. Adopting 35W Halogen bulbs as Alley Lights on both sides. Adopting one white Snap LED light respectively for the right and left of lower layer on the front side as the subsidiary light source. Two 150W standard Speakers can be mounted separately into the middle dome. Perfectly matched with SAP200E (Patlite) Siren.