9 Safety equipment, namely, emergency strobe warning lights, sirens for emergency vehicles, electrical warning and control systems for vehicles comprising siren, circuit and/or multipurpose amplifier for siren, public address and radio rebroadcast and/or controls for vehicle lights and locks, emergency warning lights, electronic flashers, alarms which sound when vehicle backs up, and signaling devices mounted on emergency vehicles to signal traffic directions, sold exclusively and directly to police departments and fire departments, and to emergency vehicle companies