A light changes the lighting and shading of the scene.

Examples

<!-- Red directional light shining from the top left. -->
<a-light color="red" position="-1 1 0"></a-light>

<!-- Blue point light, 5 meters in the air. -->
<a-light type="point" color="blue" position="0 5 0"></a-light>

<!-- Dim ambient lighting. -->
<a-light type="ambient" color="#222"></a-light>

<!-- Probe light using the #pisa environment map -->
<a-assets>
	<a-cubemap id="pisa">
	<img src="https://threejs.org/examples/textures/cube/pisa/px.png">
	<img src="https://threejs.org/examples/textures/cube/pisa/nx.png">
	<img src="https://threejs.org/examples/textures/cube/pisa/py.png">
	<img src="https://threejs.org/examples/textures/cube/pisa/ny.png">
	<img src="https://threejs.org/examples/textures/cube/pisa/pz.png">
	<img src="https://threejs.org/examples/textures/cube/pisa/nz.png">
	</a-cubemap>
</a-assets>

<a-light type="probe" envMap="#pisa"></a-light>

Attributes

Attribute	Component Mapping	Default Value
angle	light.angle	60
color	light.color	#fff
decay	light.decay	1
distance	light.distance	0.0
envmap	light.envMap	null
ground-color	light.groundColor	#fff
intensity	light.intensity	1.0
penumbra	light.penumbra	0.0
type	light.type	directional
target	light.target	null

Differences with the Default Lighting

When we add a light, A-Frame will remove the default lighting setup (i.e., one directional light from the top-left, and one small ambient light).