I modified an invisibleInwardLightHalfSphere by removing the bottom two rows of faces. The reason is to get a more dispersed light spread displayed at the floor for my park&street lights. I had a little problem with the wire because it didn't export from Blender but I have solved that by manually adding the wire material for the l lines.
But...

The original object created by Emmanuel is appr. 15kB. You would assume that with two rows of faces removed the new object would be smaller but it's much bigger: 25kB. What am I doing wrong or what is the trick to get my 'invisibleInwardLightCap' at or under 15kB?