---
title: "Lightbulb Icon | Free Download PNG & SVG | Core Line - Free"
product: "Streamline Icons, Illustrations and Elements"
url: /icons/download/lightbulb--26733
canonical_url: "https://www.streamlinehq.com/icons/download/lightbulb--26733"
summary: "Clean line icon of a lightbulb outline with a short horizontal line below. Used for ideas, innovation, and tips."
---

# Lightbulb icon

The Lightbulb icon shows a rounded bulb outline with a short horizontal base line below. Drawn in the line style on a 14px grid with a 1px stroke so it stays clear at small sizes. Use it for ideas, innovation, tips, brainstorming, and feature highlights. It belongs to Core Line - Free set in the Core family.

## Preview

![Clean line icon of a lightbulb outline with a short horizontal line below. Used for ideas, innovation, and tips.](https://assets.streamlinehq.com/image/private/w_300,h_300,ar_1/f_auto/v1/icons/interface-essential/lightbulb-5z9zs06tl9e8kcb2pi3vw6.png/lightbulb-w9onggymo2lv1phsfrnmqe.png?_a=DATAiZkSZAA0)

## Details

- **Name**: Lightbulb
- **Type**: Icon
- **Set**: [Core Line - Free](/icons/core-line-free.md) — [Free + Open-source] Core is the Helvetica of icons. The Free Line variant offers clean, minimal icons with consistent line weights. Licensed under the Creative Commons - CC BY 4.0
- **Family**: [Core](/icons/core-sets.md) — Minimal icons
- **Style**: Line
- **Category**: Interface Essential › Interface Essential
- **Default size**: 14px
- **Stroke width**: 1px
- **Pricing**: Free
- **License**: [Free](https://home.streamlinehq.com/license-free)
- **Author**: [Streamline](https://home.streamlinehq.com/)
- **Formats**: PNG, WEBP, PDF, SVG, JSX
- **Tags**: lightbulb, bulb, light, lighting, filament, bright, incandescent, illuminate, electricity, invention, energy, illumination, innovation, inspiration, concept, creativity, idea, design

## Download

- [Download Lightbulb on Streamline](https://www.streamlinehq.com/icons/download/lightbulb--26733)

## Also available in other styles

- [Lightbulb — Core Duo - Free](/icons/download/lightbulb--26749.md) (Free)
- [Lightbulb — Core Solid - Free](/icons/download/lightbulb--26750.md) (Free)
- [Lightbulb — Core Pop - Free](/icons/download/lightbulb--31924.md) (Free)
- [Lightbulb — Core Flat - Free](/icons/download/lightbulb--26781.md) (Free)
- [Lightbulb — Core Gradient - Free](/icons/download/lightbulb--29645.md) (Free)
- [Lightbulb — Core Neon - Free](/icons/download/lightbulb--31906.md) (Free)
- [Lightbulb — Core Remix - Free](/icons/download/lightbulb--29661.md) (Free)

---

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