---
title: "Lightbulb Icon | Free Download PNG & SVG | Flex Line"
product: "Streamline Icons, Illustrations and Elements"
url: /icons/download/lightbulb--24490
canonical_url: "https://www.streamlinehq.com/icons/download/lightbulb--24490"
summary: "Rounded line icon of a lightbulb with a curved filament and base. Used for ideas, lighting, and innovation."
---

# Lightbulb icon

The Lightbulb icon shows a rounded bulb with a curved filament and compact base. Drawn in the line style on a 14px grid with a 1px stroke for clear, flowing curves. Use it for ideas, lighting controls, innovation, inspiration, and energy-saving features. It belongs to Flex Line set in the Flex family.

## Preview

![Rounded line icon of a lightbulb with a curved filament and base. Used for ideas, lighting, and innovation.](https://assets.streamlinehq.com/image/private/w_240,h_240,ar_1/f_auto/v1/icons/lighting/lightbulb-w4mjdwi675sf8g7mky4nr.png/lightbulb-9clusawqsdsxg70yjd93iq.png?_a=DATAiZkSZAA0)

## Details

- **Name**: Lightbulb
- **Type**: Icon
- **Set**: [Flex Line](/icons/flex-line.md) — Flex is a fluid icon family inspired by nature's curves. It replaces rigid geometry with smooth, flowing forms. The Line variant features elegant strokes with organic curves.
- **Family**: [Flex](/icons/flex.md) — Fluid icons
- **Style**: Line, Stroke
- **Category**: Interface Essential › Lighting
- **Default size**: 14px
- **Stroke width**: 1px
- **Pricing**: Pro
- **License**: [Commercial](https://home.streamlinehq.com/license-premium)
- **Author**: [Streamline](https://home.streamlinehq.com/)
- **Formats**: PNG, WEBP, PDF, SVG, JSX
- **Tags**: lightbulb, bulb, light, lighting, idea, inspiration, creativity, thought, brainstorming, innovation, invention, electricity, incandescent, energy, lights

## Download

- [Download Lightbulb on Streamline](https://www.streamlinehq.com/icons/download/lightbulb--24490)

## Also available in other styles

- [Lightbulb — Flex Duo](/icons/download/lightbulb--24539.md) (Pro)
- [Lightbulb — Flex Remix](/icons/download/lightbulb--28537.md) (Pro)
- [Lightbulb — Flex Gradient](/icons/download/lightbulb--27692.md) (Pro)
- [Lightbulb — Flex Flat](/icons/download/lightbulb--24700.md) (Pro)
- [Lightbulb — Flex Neon](/icons/download/lightbulb--30414.md) (Pro)
- [Lightbulb — Flex Pop](/icons/download/lightbulb--31293.md) (Pro)
- [Lightbulb — Flex Solid](/icons/download/lightbulb--24330.md) (Pro)

---

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