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2. Strobe light - Wikipedia

   en.wikipedia.org/wiki/Strobe_light

   A common use of a strobe flash is to optimize a car engine's efficiency at a certain rotational period by directing the strobe-light towards a mark on the flywheel on the engine's main axle. The strobe-light tool for such ignition timing is called a timing light. Strobe lighting has also been used to see the movements of the vocal cords in slow ...

3. Federal Motor Vehicle Safety Standard 108 - Wikipedia

   en.wikipedia.org/wiki/Federal_Motor_Vehicle...

   Like all other Federal Motor Vehicle Safety Standards, FMVSS 108 is administered by the United States Department of Transportation's National Highway Traffic Safety Administration. FMVSS 108 has not been updated to adapt to widespread use of LED headlamps, which are criticized for being too bright and blinding other drivers. Some manufacturers ...

4. Wig-wag (automobile) - Wikipedia

   en.wikipedia.org/wiki/Wig-wag_(automobile)

   NWAS ambulance displays the operation of a wig-wag: only one headlight operates at a time, with the two flashing alternately at a preset rate.. A wig-wag is a device for flashing an automobile's headlamps, in its simplest form, so only one of the two headlights operates at a time, with the two flashing at a preset rate.

5. Automotive lighting - Wikipedia

   en.wikipedia.org/wiki/Automotive_lighting

   The emergency stop signal is automatically activated if the vehicle speed is greater than 50 km/h (31 mph) and the emergency braking logic defined by regulation No. 13 (heavy vehicles), 13H (light vehicles), or 78 (motorcycles) is activated; the ESS may be displayed when a light vehicle's deceleration is greater than 6 m/s 2 (20 ft/s 2) or a ...

6. Carbide lamp - Wikipedia

   en.wikipedia.org/wiki/Carbide_lamp

   They were once favoured for their relative illumination per mass of fuel compared to battery-powered devices. [ citation needed ] Before the advent of high-intensity light-emitting diode (LED) illumination with lithium-ion batteries, carbide also had two important advantages over the alternative of miners electric lamps.

7. Light-emitting diode - Wikipedia

   en.wikipedia.org/wiki/Light-emitting_diode

   One-color light is well suited for traffic lights and signals, exit signs, emergency vehicle lighting, ships' navigation lights, and LED-based Christmas lights Because of their long life, fast switching times, and visibility in broad daylight due to their high output and focus, LEDs have been used in automotive brake lights and turn signals.