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    Philips 9004/HB1, 12V, 60/45W, 9004AW Weathervision Dichroic Yellow Bulb

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      Purchase Philips 9004/HB1, 12V, 60/45W, 9004AW Weathervision Dichroic Yellow Bulb

      Philips 9004/HB1, 12V, 60/45W, 9004AW Weathervision Dichroic Yellow Bulb SKU: CP9004AW

      $9.98

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      A dichroic bulb produces a "Selective Yellow" light which is felt by many to make it easier to see in bad weather. They were required in France from the mid 1930s to 1991 when the requirement was ended.

      A Dichroic Yellow lamp gets its color by heating a cadmium coating inside of the globe. This coating, when heated up, releases a gas with a specific shade of yellow. The gas, in turn, colors the light with about 5% lumen loss, A bulb with a yellow filter coating blocks almost all of the blue and violet light which amounts to about 25% of the lumen output.

      Cadmium is a heavy metal and its disposal in landfills exceeded the benefits provided to lighting the road on a foggy night. The development of Xenon Technology helped lamps to produce more light and overcome the loss of light caused by a yellow coating on the outside of the globe. This change has caused the reduced use of Dichroic Yellows bulbs to the point that most manufactures have discontinurd their production, and availability is limited to stock on hand.

      • Dichroic Bulb simular to Hella Yellow Star
      • Yellow tint causes less eye strain in bad weather

      Specifications:

      • Industry standard: 9004/HB1
      • Technology: Halogen 
      • Base: P29t
      • Globe material: Clear Quartz
      • Globe Size and shape: Tubular 11 mm diameter (T4.625)
      • Light color temperature 2900ºK
      • 12 Volt 60/45W Luninous Flux 1050/700 Lumens
      • 60/45W Life B3: 3% wil last 150/320 Hours
      • 60/45W Life Tc: 66% will last 500/1200 Hours

      Discontinued, While Supplies Last

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