Vertical Light bulbs,One Lit ,Yaquina Head Lighthouse - Stock Image

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Description
Light bulbs at the Yaquina Head Lighthouse are used against a Fresnel lens to make them brighter. In this instance a unique pattern of 2 seconds on, 2 seconds off, 2 seconds on, 14 seconds off, are run fully automated 24 hours a day. A lit light bulb has been used to connote "a bright idea", "a mental inspiration," "a bright bulb among dull ones."

Similar image with no bulbs illuminated:
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