chalk drawing of glowing light bulb on blackboard

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chalk drawing of glowing light bulb on blackboard innovation concept

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Size: 7740px × 4881px
Photo credit: © Christian Horz / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: blackboard, bright, bulb, business, cable, chalk, chalkboard, chord, concept, copy, drawing, education, electric, electricity, energy, equipment, glow, glowing, hanging, idea, illuminated, imagination, innovation, invention, light, power, shine, space, symbol