Light Bulb Icon - Free Vector Illustration for Web & Design #1641315 (License: Personal Use)

This monochrome line-art illustration depicts a traditional A-type incandescent light bulb with a clearly defined screw base and rounded glass envelope. The design is intentionally minimal, using bold black strokes on a white background to ensure scalability and legibility across digital interfaces. It serves as a universal visual metaphor for ideas, problem-solving, and innovation.

Used in blog headers, infographics, UI elements (e.g., “Tips” or “Ideas” sections), educational materials, and sustainability content. Matches user intent for symbolic imagery related to brainstorming, energy efficiency, or conceptual thinking.