Lightbulb color outline icon
Outline icon of a lightbulb with radiating rays and a ringed screw base symbolizing an idea
About the Lightbulb color 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 colour outline version of the lightbulb icon: the same line drawing in an accent colour, useful for highlighting a state, a category or a brand tone without adding visual weight.
It downloads free as an SVG vector or transparent PNG in seven sizes, and the free online editor lets you recolor it, apply gold, silver, neon and gradient styles, add animation, or convert it to EPS, PDF and DXF.
Free for personal and commercial use with attribution.
