[page:Object3D] → [page:Light] →

# [name]

Affects objects using [page:MeshLambertMaterial] or [page:MeshPhongMaterial].

## Example

[example:canvas_lights_pointlights lights / pointlights ]
[example:webgl_lights_pointlights lights / pointlights ]
[example:webgl_lights_pointlights2 lights / pointlights2 ]
[example:webgldeferred_animation animation ]
[example:webgldeferred_pointlights pointlights ]
[example:webgl_effects_anaglyph effects / anaglyph ]
[example:webgl_geometry_large_mesh geometry / large / mesh ]
[example:webgl_geometry_text geometry / text ]
[example:webgl_lensflares lensflares ]
`var light = new THREE.PointLight( 0xff0000, 1, 100 ); light.position.set( 50, 50, 50 ); scene.add( light );`

## Constructor

### [name]( [page:Integer color], [page:Float intensity], [page:Number distance], [page:Float decay] )

[page:Integer color] — Numeric value of the RGB component of the color.
[page:Float intensity] — Numeric value of the light's strength/intensity.
[page:Number distance] -- The distance of the light where the intensity is 0. When distance is 0, then the distance is endless.
[page:Float decay] -- The amount the light dims along the distance of the light.
Creates a light at a specific position in the scene. The light shines in all directions (roughly similar to a light bulb.)

## Properties

See the base [page:Light Light] class for common properties.

### [property:Float power]

Light's power.
In "physically correct" mode, the luminous power of the light measured in lumens.
Default - *4PI*.

### [property:Float distance]

If non-zero, light will attenuate linearly from maximum intensity at light *position* down to zero at *distance*.
Default — *0.0*.

### [property:Float decay]

The amount the light dims along the distance of the light
In "physically correct" mode, decay = 2 leads to physically realistic light falloff.
Default — *1*.

### [property:LightShadow shadow]

This property stores all relevant information for rendering the shadow of the light.

## Methods

See the base [page:Light Light] class for common methods.

### [method:PointLight copy]( [page:PointLight source] )

Copies value of *source* to this PointLight object.

## Source

[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]