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Hy-Lo light bulb, ca. 1904

Contributed by Maine Historical Society

Hy-Lo light bulb, ca. 1904

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This "Hy-Lo" light bulb, developed by the Economical Lamp Division of General Electric, used two carbon filaments connected to different poles of a rocker switch on the side of the bulb base. One filament gave brighter light than the other.

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Other Information

  • Title: Hy-Lo light bulb, ca. 1904
  • Creator: General Electric Co.
  • Creation Date: circa 1904
  • Subject Date: circa 1904
  • Media: Glass, cellulose, brass
  • Local Code: 2004.090.3265
  • Collection: Central Maine Power Company
  • Object Type: Physical Object

For more information about this item, contact:

Maine Historical Society
489 Congress Street, Portland, ME 04101
(207) 774-1822

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LC Subject Headings

Central Maine Power Company
Light bulbs

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