Regarding the visible cone of light, I'm not sure what laws of physics apply in your area but round here you can't see light till it hits something!

I've been watching the re-runs of X-files and they keep pumping a smoke machine into the woods just so they can show the beams from  the UFOs.

Acadia, If you're seeing the cones from your lights at home maybe you should cut down on the cigarettes or at least open a window. :biggrin::biggrin::biggrin::biggrin::biggrin:

regards
pk
www.planit3d.com