# GH_Light class

Namespace: [Grasshopper.Kernel.Types](https://developer.rhino3d.com/api/gh1/namespace/grasshopper.kernel.types.md) · Assembly: [Grasshopper](https://developer.rhino3d.com/api/gh1/assembly/grasshopper.md)

```cs
public class GH_Light : GH_GeometricGoo<Light>, IGH_GeometricGoo, IGH_PreviewData, IGH_BakeAwareData
```

Represents an implementation of a Rhino Light class.

## Constructors

- [GH_Light](https://developer.rhino3d.com/api/gh1/type/grasshopper.kernel.types.gh-light/ctor.md): (4 overloads) Default constructor, creates an new light

## Properties

- [BoundingBox](https://developer.rhino3d.com/api/gh1/type/grasshopper.kernel.types.gh-light/boundingbox.md)
- [ClippingBox](https://developer.rhino3d.com/api/gh1/type/grasshopper.kernel.types.gh-light/clippingbox.md)
- [IsGeometryLoaded](https://developer.rhino3d.com/api/gh1/type/grasshopper.kernel.types.gh-light/isgeometryloaded.md): Gets the load state of this light object. The light is considered to be loaded when the local light instance is not null.
- [IsValid](https://developer.rhino3d.com/api/gh1/type/grasshopper.kernel.types.gh-light/isvalid.md): Gets the validity of this light. If the light is referenced but cannot be loaded, then the light is not valid.
- [IsValidWhyNot](https://developer.rhino3d.com/api/gh1/type/grasshopper.kernel.types.gh-light/isvalidwhynot.md): Gets a string describing the state of "invalidness". If the instance is valid, then this property should return Nothing or String.Empty.
- [ReferenceID](https://developer.rhino3d.com/api/gh1/type/grasshopper.kernel.types.gh-light/referenceid.md)
- [TypeDescription](https://developer.rhino3d.com/api/gh1/type/grasshopper.kernel.types.gh-light/typedescription.md)
- [TypeName](https://developer.rhino3d.com/api/gh1/type/grasshopper.kernel.types.gh-light/typename.md)
- [Value](https://developer.rhino3d.com/api/gh1/type/grasshopper.kernel.types.gh-light/value.md)

## Methods

- [BakeGeometry](https://developer.rhino3d.com/api/gh1/type/grasshopper.kernel.types.gh-light/bakegeometry.md)
- [CastFrom](https://developer.rhino3d.com/api/gh1/type/grasshopper.kernel.types.gh-light/castfrom.md): Remote to Local caster function. This stuff is complex, don't concern yourself with casting logic.
- [CastTo<T>](https://developer.rhino3d.com/api/gh1/type/grasshopper.kernel.types.gh-light/castto.md): Local to Remote caster function. This stuff is complex, don't concern yourself with casting logic.
- [ClearCaches](https://developer.rhino3d.com/api/gh1/type/grasshopper.kernel.types.gh-light/clearcaches.md): Clears all volatile caches for this instance. The boundingbox is cleared, and if the light is referenced, the local instance of the light is erased.
- [DrawViewportMeshes](https://developer.rhino3d.com/api/gh1/type/grasshopper.kernel.types.gh-light/drawviewportmeshes.md)
- [DrawViewportWires](https://developer.rhino3d.com/api/gh1/type/grasshopper.kernel.types.gh-light/drawviewportwires.md)
- [Duplicate](https://developer.rhino3d.com/api/gh1/type/grasshopper.kernel.types.gh-light/duplicate.md)
- [DuplicateGeometry](https://developer.rhino3d.com/api/gh1/type/grasshopper.kernel.types.gh-light/duplicategeometry.md): Create a duplicate of this light.
- [DuplicateLight](https://developer.rhino3d.com/api/gh1/type/grasshopper.kernel.types.gh-light/duplicatelight.md): Create a duplicate of this light.
- [GetBoundingBox](https://developer.rhino3d.com/api/gh1/type/grasshopper.kernel.types.gh-light/getboundingbox.md)
- [LoadGeometry](https://developer.rhino3d.com/api/gh1/type/grasshopper.kernel.types.gh-light/loadgeometry.md): (2 overloads) If the geometry is referenced and not yet loaded, attempts to load the geometry.
- [Morph](https://developer.rhino3d.com/api/gh1/type/grasshopper.kernel.types.gh-light/morph.md)
- [Read](https://developer.rhino3d.com/api/gh1/type/grasshopper.kernel.types.gh-light/read.md)
- [ScriptVariable](https://developer.rhino3d.com/api/gh1/type/grasshopper.kernel.types.gh-light/scriptvariable.md)
- [ToString](https://developer.rhino3d.com/api/gh1/type/grasshopper.kernel.types.gh-light/tostring.md): Format the dimension using default grasshopper formatting logic.
- [Transform](https://developer.rhino3d.com/api/gh1/type/grasshopper.kernel.types.gh-light/transform.md)
- [Write](https://developer.rhino3d.com/api/gh1/type/grasshopper.kernel.types.gh-light/write.md)

## Inherited Members

- From [GH_GeometricGoo<T>](https://developer.rhino3d.com/api/gh1/type/grasshopper.kernel.types.gh-geometricgoo-1.md): [IsReferencedGeometry](https://developer.rhino3d.com/api/gh1/type/grasshopper.kernel.types.gh-geometricgoo-1/isreferencedgeometry.md), [EmitProxy](https://developer.rhino3d.com/api/gh1/type/grasshopper.kernel.types.gh-geometricgoo-1/emitproxy.md)
- From [GH_Goo<T>](https://developer.rhino3d.com/api/gh1/type/grasshopper.kernel.types.gh-goo-1.md): [m_value](https://developer.rhino3d.com/api/gh1/type/grasshopper.kernel.types.gh-goo-1/m-value.md), [CastTo<Q>](https://developer.rhino3d.com/api/gh1/type/grasshopper.kernel.types.gh-goo-1/castto.md)