Havis Electronic Flashers produce a variety of lighting patterns and sequences across a broad range of amperage ratings Primary and Secondary load modes Heavy Duty capacity for high amperage loads Primary load for full power, alternating flashing through all groups of warning lights Secondary mode used for on scene flashing of specific groups of warning lights Flash Rate: 75-80 per minute 3 output terminals Federal GSA Specification for Ambulance: KKK-A-1822C, KKK-A-1-822D, and KKK-A-1822E Output short circuit protection Reverse input voltage protection Current limit protection 2-yr warranty Complimentary products available from Havis: Battery Isolator, DC to AC Inverter, Battery Charger, DC Converter Typical Installation Applications include: Ambulance, Fire Rescue, Specialty Vehicle Innovative Heat Sink 4 selectable flash patterns