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2. Emergency light - Wikipedia

   en.wikipedia.org/wiki/Emergency_light

   A hallway under regular lighting (left) and emergency lighting (right) US-style emergency lighting fixture An emergency light is a battery-backed lighting device that switches on automatically when a building experiences a power outage.

3. Emergency vehicle lighting - Wikipedia

   en.wikipedia.org/wiki/Emergency_vehicle_lighting

   Emergency vehicle lighting, also known as simply emergency lighting or emergency lights, is a type of vehicle lighting used to visually announce a vehicle's presence to other road users. A sub-type of emergency vehicle equipment , emergency vehicle lighting is generally used by emergency vehicles and other authorized vehicles in a variety of ...

4. Talk:Exit sign - Wikipedia

   en.wikipedia.org/wiki/Talk:Exit_sign

   LAMP LIFE . The length of time a lamp lasts is a critical factor, since lamp replacement costs (including lamp and labor costs, as well as the administrative cost of ordering lamps) will be incurred more frequently when lamps have a shorter rated life. An LED exit sign can last for 10 years with no lamp change-outs.

5. Why airlines plug up emergency exits - AOL

   www.aol.com/news/why-airlines-plug-emergency...

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6. Fluorescent lamp - Wikipedia

   en.wikipedia.org/wiki/Fluorescent_lamp

   A cold-cathode fluorescent lamp from an emergency-exit sign. Operating at a much higher voltage than other fluorescents, the lamp produces a low-amperage glow discharge rather than an arc, similar to a neon light. Without direct connection to line voltage, current is limited by the transformer alone, negating the need for a ballast.

7. Emergency exit - Wikipedia

   en.wikipedia.org/wiki/Emergency_exit

   Emergency exit in Universitetet metro station in Stockholm. An emergency exit in a building or other structure is a special exit used during emergencies such as fires.The combined use of regular and emergency exits allows for faster evacuation, and emergency exits provide alternative means of evacuation if regular exits are inaccessible.