Definition of sealed-beam in English:

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Denoting a vehicle headlamp with a sealed unit consisting of the light source, reflector, and lens: a sealed-beam headlamp
More example sentences
  • Sealed beam headlights are much harder to replace compared to composite headlamps.
  • However, some vehicles use sealed beam lighting which requires that you convert to bulb type lighting.
  • This document establishes performance requirements, material requirements, design requirements, and design guidelines for sealed beam headlamps.

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