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2. Automotive lighting - Wikipedia

   en.wikipedia.org/wiki/Automotive_lighting

   High-intensity discharge, or HID lights, sometimes referred to as "xenon lights", are modified metal halide lights employing xenon fill gas. Traditional HID lights, such as those used for general lighting, have a long warm-up time. Headlights must provide light very shortly after they are turned on, and the xenon gas serves to reduce warm-up ...

3. Toyota Prius (XW20) - Wikipedia

   en.wikipedia.org/wiki/Toyota_Prius_(XW20)

   The Touring Edition also comes with a firmer, European-style, tuned suspension, standard high-intensity-discharge (HID) headlights, and integrated (non-HID) fog lights. In 2005, Toyota had to fix a software glitch that caused the Prius' engine to enter "limp" mode with electric-only operation, following 68 stall complaints in the U.S. out of ...

4. High-intensity discharge lamp - Wikipedia

   en.wikipedia.org/wiki/High-intensity_discharge_lamp

   High-intensity discharge lamps are a type of arc lamp . Brand new high-intensity discharge lamps make more visible light per unit of electric power consumed than fluorescent and incandescent lamps, since a greater proportion of their radiation is visible light in contrast to infrared. However, the lumen output of HID lighting can deteriorate by ...

5. Headlamp - Wikipedia

   en.wikipedia.org/wiki/Headlamp

   Headlamp. A motor scooter 's front with an impractical number and variety of headlamps, added for decorative purposes and characteristic of Mod culture. A headlamp is a lamp attached to the front of a vehicle to illuminate the road ahead. Headlamps are also often called headlights, but in the most precise usage, headlamp is the term for the ...

6. Sodium-vapor lamp - Wikipedia

   en.wikipedia.org/wiki/Sodium-vapor_lamp

   A sodium-vapor lamp is a gas-discharge lamp that uses sodium in an excited state to produce light at a characteristic wavelength near 589 nm . Two varieties of such lamps exist: low pressure and high pressure. Low-pressure sodium lamps are highly efficient electrical light sources, but their yellow light restricts applications to outdoor ...

7. Hidden headlamp - Wikipedia

   en.wikipedia.org/wiki/Hidden_headlamp

   Hidden headlamp. Two images showing a Mazda 323 F's headlights retracted and visible. Hidden headlamps, also commonly known as pop-up headlamps, pop-up headlights, flip-eye headlamps, or hideaway headlights, are a form of automotive lighting and an automotive styling feature that conceals an automobile 's headlamps when they are not in use.