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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 United States usage, headlamp is the term for the device itself and headlight is the term for the beam of light produced and distributed by the device.
History & Measurement
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headlamps beam light low high bulb use system vehicle lamps first hid glare vehicles lens filament beams us used halogen
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Headlamp | is a | lamp attached to the front of a vehicle to illuminate the road ahead | 0.90 | text |
| Headlamp | is a | term for the device itself and headlight is the term for the beam of light produced and distributed by the device.Headlamp performance has steadily improved throughout the autom… | 0.90 | text |
| Headlamp | is a | need to accommodate the physical depth of the assembly | 0.90 | text |
| acetylene gas or oil | instance of | fuelled by combustible gas | 0.80 | text |
| operated from the late 1880s | instance of | fuelled by combustible gas | 0.80 | text |
| the Chevrolet Corvette | instance of | many notable sports cars used this feature | 0.80 | text |
| the 1967 | instance of | as on some Ford vehicles of the late 1960s through early 1980s | 0.80 | text |
| Japan | instance of | and other countries | 0.80 | text |
| United Kingdom | instance of | and other countries | 0.80 | text |
| and Australia also made extensive use of sealed beams | instance of | and other countries | 0.80 | text |
| metal halide | instance of | and suggest that headlamps using newer kinds of sources | 0.80 | text |
| the 9004 can only be used with the filaments horizontal | instance of | Transverse-filament bulbs | 0.80 | text |
These clusters group vocabulary that occurs around closely connected concepts in the source material.
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