Lightbulb black outline icon
Outline icon of a lightbulb with radiating rays and a ringed screw base symbolizing an idea
About the Lightbulb black outline icon
The icon shows a rounded lightbulb with short radiating dash lines around the top signaling light or a spark of insight, a curved glass highlight inside, and a ringed screw-thread base. It represents ideas, innovation, and inspiration, fitting brainstorming tools, tips and FAQ sections, energy apps, and startup or product landing pages.
The symmetric bulb has evenly spaced rays around the crown, three horizontal rings mark the screw base, and a single curved line adds a glass-highlight detail. It pairs with gear, brain, and rocket icons for innovation themes, and reads clearly even at 16px.
This is the black outline version of the lightbulb icon: even, monoline strokes that stay crisp at small sizes and suit clean, minimal interfaces, wireframes and light backgrounds.
Download it free as a scalable SVG vector or transparent-background PNG in seven sizes (16 to 512px), copy the SVG code straight into your project, or open it in the free online editor to change colors, apply gold, silver, neon and gradient styles, animate it, or convert it to EPS, PDF and DXF.
Free for personal and commercial use with attribution.
