Classic light bulb. Turn on and turn off of light bulb, innovation, save energy
Contributor: BillionPhotos.com
ID : 483186576
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Keywords
bulb, light, light bulb, background, bright, concept, concept, creative, creativity, discovery, edison, electric, electrical, electricity, energy, equipment, gas, glasses, glowing, heat, household, idea, illuminated, image, imagination, innovation, inspiration, intelligence, invention, lampRelated items
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