Lightbulb black outline icon
Outline light bulb with filament and screw base inside a circle
About the Lightbulb black outline icon
A light bulb inside a circular frame, shown with a rounded glass envelope, a small highlight arc, a filament loop on two support posts and a ribbed screw base. It is the standard shorthand for ideas, tips and innovation, fitting blog callouts, brainstorming boards, product feature lists, energy saving pages and pitch deck slides.
The bulb fills most of the ring with even margins, and the interior filament keeps it from reading as a plain dome. It pairs with rocket, gear and target icons for a startup set. The base ribs merge below 20 px, so scale up for print.
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.
