connect color values

How can I read the rgb-values from a spotlight to use it for the diffuse color in a material ?
So the material and the spotlight have the same color, driven by the spotlight.
Thanks

hi
Let say you have a BP that contains a sportLight and LightMesh

Material:

BP construction Script :

BP evet Graph

I have build like you did but I get this on the construction script:
What is this ?