Lightbulb and exclamation point illustrating concept of idea on blackboard

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Size: 3744px × 5616px
Photo credit: © Robert Kneschke / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: advertising, background, black, blackboard, brainstorming, bulb, busines, business, chalk, chalkboard, concept, creative, creativity, exclamation, grunge, idea, innovation, inspiration, lessons, light, lightbulb, line, mark, presentation, school, solution, stroke, success, symbol, texture, wall