---
title: "Lightbulb Icon | Free Download PNG & SVG | Solar Line Duotone"
product: "Streamline Icons, Illustrations and Elements"
url: /icons/download/lightbulb--29544
canonical_url: "https://www.streamlinehq.com/icons/download/lightbulb--29544"
summary: "Clean duotone icon of a lightbulb with a U-shaped filament and base. Used for ideas, lighting, tips, and innovation."
---

# Lightbulb icon

The Lightbulb icon shows a rounded bulb outline with a U-shaped filament and a two-tone base. Drawn in the duotone style on a 24px grid with a 1.5px stroke so it stays crisp and airy in interfaces. Use it for idea prompts, lighting controls, tips, innovation features, and learning tools. It belongs to Solar Line Duotone free set in the Solar family.

## Preview

![Clean duotone icon of a lightbulb with a U-shaped filament and base. Used for ideas, lighting, tips, and innovation.](https://assets.streamlinehq.com/image/private/w_300,h_300,ar_1/f_auto/v1/icons/electronic-devices/lightbulb-80bogdnn7pw6l5twzurqy.png/lightbulb-npd6jdypxroyx05wbevqnt.png?_a=DATAiZkSZAA0)

## Details

- **Name**: Lightbulb
- **Type**: Icon
- **Set**: [Solar Line Duotone](/icons/solar-line-dutone.md) — Solar is a free and open source icon set created by 480 Design with bright, clean aesthetics.
- **Family**: [Solar](/icons/solar.md)
- **Style**: Duo, Stroke
- **Category**: Electronic Devices › Electronic Devices
- **Default size**: 24px
- **Stroke width**: 1.5px
- **Pricing**: Free
- **License**: [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/)
- **Author**: [480 Design](https://www.figma.com/community/file/1166831539721848736/solar-icons-set)
- **Formats**: PNG, WEBP, PDF, SVG, JSX
- **Tags**: lightbulb, bulb, electricity, energy, illumination, idea, innovation, creativity, inspiration, concept, brightness

## Download

- [Download Lightbulb on Streamline](https://www.streamlinehq.com/icons/download/lightbulb--29544)

## Also available in other styles

- [Lightbulb — Solar Broken](/icons/download/lightbulb--29249.md) (Free)
- [Lightbulb — Solar Bold](/icons/download/lightbulb--29264.md) (Free)
- [Lightbulb — Solar Linear](/icons/download/lightbulb--29193.md) (Free)
- [Lightbulb — Solar Bold Duotone](/icons/download/lightbulb--29509.md) (Free)

---

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