Incandescent electric light bulb filament, turned on.

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Size: 3632px × 5436px
Photo credit: © Geoff Smith / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: alight, bulb, close, closeup, concept, conceptual, edison, filament, invention, inventions, inventor, light, lightbulb, lit, macro, switched, thomas, turned