[ShaderGraph] How can I prevent lights overlapping in intensity?

I am trying to get my 2d sprite shader to clamp or only use the the most intense lightsource, and not add light sources together What I am seeing currently is the left image I would like to have the center and right images

My current shader

I know I need to put a Clamp or a Max node somewhere but I do not see anywhere that brightness levels are referenced in the shader, so I am kind of stuck