Hi,
I’m trying to find the bottleneck in my scene and I created a blank scene with just a camera, directional light and a cyclops mesh. The number of triangles being drawn is approximately 14.7k but when the light is removed it drops down to 3.8k which is the approximate size of the cyclops mesh. Why is there such a huge jump in the number of triangles? Is this a concern when I’ll have lots of other meshes in the final scene? I would have thought it would double but not nearly a four-fold increase. Am I worrying too much? 
The mesh is pretty lightweight.
Richard