What is Light classes intensity property value range?

What is Light class intensity property value range? Is it 0 to 1 or more?
According to the line of code here it can be more:

If it is not more than 1, I mean if it is in the 0 to 1 range, should we put a mechanism in code to keep it in the range and update the docs?

See https://threejs.org/docs/#api/en/lights/Light.intensity. If you’ve set renderer.physicallyCorrectLights = true, the value is luminous intensity measured in candela. In the default mode it isn’t physically based and has no units, but higher still means brighter.

In either case, it should be >= 0, but there is no upper limit.

Then there is no need to put limit checks in that respect.