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2. Whelen Engineering Company - Wikipedia

   en.wikipedia.org/wiki/Whelen_Engineering_Company

   The Whelen Engineering Company is an American corporation that designs and manufactures audio and visual warning equipment for automotive, aviation, and mass notification industries worldwide. Founded in a Deep River, Connecticut garage in 1952, [ 1 ] Whelen has become a provider of warning lights, white illumination lighting, sirens, and ...

3. Emergency vehicle lighting - Wikipedia

   en.wikipedia.org/wiki/Emergency_vehicle_lighting

   Yellow/amber (not including traffic advisor lights) is for security cars, semi-trucks with big and long trailers, tow trucks, road or highway maintenance/authority vehicles (with optional red lights), some military vehicles, airport service vehicles (excluding airport emergency services), a limited amount of hearse vans, emergency response team ...

4. Category:Aircraft external lights - Wikipedia

   en.wikipedia.org/wiki/Category:Aircraft_external...

   Pages in category "Aircraft external lights" The following 7 pages are in this category, out of 7 total. ... Whelen Engineering Company; Y. Yehudi lights

5. Civil defense siren - Wikipedia

   en.wikipedia.org/wiki/Civil_defense_siren

   Hungary. [edit] The first ever civil defense air raid siren system was installed in 1938-1939 by the Hungarian Goverment to warn the public of air attacks. Electric-motor sirens were placed in big cities, the high-range sirens were placed in downtown, while the suburban areas had small-range electric-motor sirens.

6. Emergency vehicle equipment - Wikipedia

   en.wikipedia.org/wiki/Emergency_vehicle_equipment

   Emergency vehicle equipment. An ambulance with two red revolving lights ( beacons) mounted above two flashing red lights, with two speakers between for the vehicle's electronic siren. Also seen are two antennae; the one seen between the two speakers is for a two-way radio, while the one seen in front of the flashing light on the left is ...

7. Approach lighting system - Wikipedia

   en.wikipedia.org/wiki/Approach_lighting_system

   Approach lights at Jyväskylä Airport, Finland The approach lighting system of Bremen Airport Approach lighting at Love Field, Dallas. An approach lighting system (ALS) is a lighting system installed on the approach end of an airport runway and consisting of a series of lightbars, strobe lights, or a combination of the two that extends outward from the runway end. [1]