---
title: "Lightbulb Icon | Free Download PNG & SVG | Core Duo - Free"
product: "Streamline Icons, Illustrations and Elements"
url: /icons/download/lightbulb--26749
canonical_url: "https://www.streamlinehq.com/icons/download/lightbulb--26749"
summary: "Clean duotone icon of a lightbulb with a round top, base, and bottom bar. Used for ideas and tips."
---

# Lightbulb icon

The Lightbulb icon shows a rounded bulb with a circular top, short socket-like base, and separate horizontal bar below. Drawn in the duotone style on a 14px grid with a 1px stroke, its paired tones keep the simple silhouette clear in compact interfaces. Use it for idea prompts, tips, innovation features, lighting controls, and educational interfaces. It belongs to Core Duo - Free set in the Core family.

## Preview

![Clean duotone icon of a lightbulb with a round top, base, and bottom bar. Used for ideas and tips.](https://assets.streamlinehq.com/image/private/w_300,h_300,ar_1/f_auto/v1/icons/interface-essential/lightbulb-9ga7fah2f8bxbchdubjmpe.png/lightbulb-bp5jlz2nm3lxmjr5mwg0fa.png?_a=DATAiZkSZAA0)

## Details

- **Name**: Lightbulb
- **Type**: Icon
- **Set**: [Core Duo - Free](/icons/core-duo-free.md) — Core is the Helvetica of icons. The Free Duo variant uses dual tones for a sophisticated color approach. Licensed under the Creative Commons - CC BY 4.0
- **Family**: [Core](/icons/core-sets.md) — Minimal icons
- **Style**: Duo
- **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--26749)

## Also available in other styles

- [Lightbulb — Core Line - Free](/icons/download/lightbulb--26733.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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