Lightbulb Question Outline

The lightbulb-question-outline icon represents a lightbulb with a question mark and an outline style, symbolizing a query or uncertainty about an idea or inspiration. It originates from the Material Design Icons library, created by Pictogrammers.

In software applications, this icon is often used to represent a help or support feature with a subtle design. For example, it can be found in educational platforms like Khan Academy or Coursera, where it signifies a question or concern about a course or topic.

From a UX perspective, the lightbulb-question-outline icon effectively communicates the concept of inquiry or curiosity with a subtle design. When users see this icon, they understand that they are about to engage with a feature that will provide them with answers or solutions in a gentle way.

Lightbulb Question Outline is one of 7,638 icons in Material Design Icons, made by Pictogrammers and released under Apache 2.0. It is drawn on a 24 × 24 grid.

Sign in (it's free), then open Get icon, Install with shadcn CLI, and pick your package manager to copy the command. It adds LightbulbQuestionOutlineIcon to components/icons/mdi-lightbulb-question-outline.tsx: one file, a size prop (24 by default) and every SVG prop, with no icon package.

Copy it as React (from Get icon, or the Code section): a typed LightbulbQuestionOutlineIcon component you paste into your project, with no package to install. Only the icons you import reach your bundle. It works in Next.js and any React app.

Open Get icon, then Copy as code, and pick Vue, Svelte, Angular, Solid or Preact; the Code section shows each one too. Every version is one self-contained component with the SVG inside, and SVG and data URL copies are there for plain HTML and CSS.

With Pro, the shadcn.io MCP server lets Claude Code, Cursor or any MCP client find the Lightbulb Question Outline icon, or any of 7,638 Material Design Icons icons, and install it from a prompt.

It's drawn in currentColor, so it takes the text color wherever you use it: a class like text-primary recolors it. To bake a color in, set one in Customize before you copy.

Set width and height on the component, or a class like size-6. It's drawn on a 24 × 24 grid, so it stays sharp at any size. Customize also sets the size it exports at, its padding and rotation.

Yes. It follows the text color, so with text-foreground (or any theme token) it changes with your light and dark themes. The icon is a vector, so it needs no separate dark asset.

Next to a visible label it's decoration: add aria-hidden="true" so screen readers skip it. Standing alone, as in an icon button, give the button a name instead, like aria-label="Lightbulb Question Outline", so screen readers say what it does.

Yes. LightbulbQuestionOutlineIcon passes every SVG prop to the svg element, so <LightbulbQuestionOutlineIcon aria-hidden="true" /> works, and so do role="img" with aria-label, or a title child, when it carries meaning on its own.

Yes. Open Get icon, then Download file: SVG for code or design tools like Figma; PNG, WebP or JPEG at 512px; or an ICO favicon with 16, 32 and 48px inside. Each one uses what you set in Customize.

Yes. Apache 2.0 allows commercial use; keep the license notice when you ship the icons' source files. The full terms are in the license, linked on this page.

No visible credit is required: Apache 2.0 only asks that you keep the license notice if you ship the icons' source files. Icons installed with the shadcn CLI already start with a comment naming Material Design Icons, Pictogrammers and the license.

Yes. Copying and downloading it is free, and the shadcn CLI install only needs a free account.

Its tags are energy, electricity, query, inquiry, question and bulb. Each tag page lists the icons that carry it from every library, which is the quickest way to find a match for Lightbulb Question Outline in another set.

Material Design Icons draws many icons in several styles: Outline next to the default. Open the library and pick a style above the grid to see Lightbulb Question Outline's siblings in it.