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- Sealed_beam abstract "A sealed beam is a type of unitized lamp with a parabolic reflector, one or more filaments, and a glass or polycarbonate lens all permanently attached together and sealed. Originally introduced for road vehicle headlamp service, sealed beams have since been applied elsewhere. Halogen sealed beam lamps have an inbuilt halogen lamp with the filaments contained in a quartz or hard glass envelope.Sealed beams are technically known as parabolic aluminumized reflector or "PAR" lamps. Round PAR lamp diameter is expressed in non-metric units of measurement equal to one eighth of an inch, so a PAR56 lamp, for example, is 56/8" (i.e., 7 inches) in diameter. Other popular sizes are PAR30, PAR36, PAR38, PAR46, and PAR64. Rectangular PAR lamp size is expressed in millimeters, so a PAR200×142 is 200mm wide and 142mm tall.Sealed beams are available in a variety of nominal voltage ratings, most commonly 6, 12, 24, 28, 120, and 230 V. The actual operating voltage may differ from the nominal rated voltage; for example, "12 volt" sealed beam headlamps are meant for use in automobiles with typical line voltage of 13.5 to 14.2 with the engine running.".
- Sealed_beam thumbnail Sealedbeam_d106.jpg?width=300.
- Sealed_beam wikiPageID "998100".
- Sealed_beam wikiPageRevisionID "593511594".
- Sealed_beam hasPhotoCollection Sealed_beam.
- Sealed_beam subject Category:Incandescent_light_bulbs.
- Sealed_beam type Artifact100021939.
- Sealed_beam type Device103183080.
- Sealed_beam type ElectricLamp103272383.
- Sealed_beam type IncandescentLightBulbs.
- Sealed_beam type Instrumentality103575240.
- Sealed_beam type Lamp103636248.
- Sealed_beam type LightBulb103665924.
- Sealed_beam type Object100002684.
- Sealed_beam type PhysicalEntity100001930.
- Sealed_beam type SourceOfIllumination104263760.
- Sealed_beam type Whole100003553.
- Sealed_beam comment "A sealed beam is a type of unitized lamp with a parabolic reflector, one or more filaments, and a glass or polycarbonate lens all permanently attached together and sealed. Originally introduced for road vehicle headlamp service, sealed beams have since been applied elsewhere. Halogen sealed beam lamps have an inbuilt halogen lamp with the filaments contained in a quartz or hard glass envelope.Sealed beams are technically known as parabolic aluminumized reflector or "PAR" lamps.".
- Sealed_beam label "Sealed beam".
- Sealed_beam label "Sealed-Beam-Scheinwerfer".
- Sealed_beam label "Лампа-фара".
- Sealed_beam label "シールドビーム".
- Sealed_beam sameAs Sealed-Beam-Scheinwerfer.
- Sealed_beam sameAs シールドビーム.
- Sealed_beam sameAs m.03xxjw.
- Sealed_beam sameAs Q4253625.
- Sealed_beam sameAs Q4253625.
- Sealed_beam sameAs Sealed_beam.
- Sealed_beam wasDerivedFrom Sealed_beam?oldid=593511594.
- Sealed_beam depiction Sealedbeam_d106.jpg.
- Sealed_beam isPrimaryTopicOf Sealed_beam.
