I'm using the following declaration to create a red spot light with a visible
beam and then using the declaration in multiple place. The object appears
multiple times in the rendered scene but only one instance appears to have a
light source. Can you duplicate light source in this way?

#declare MySpotLight =
union {
 light_source {
  <0,-0.35, 0>
  color Red*2
  spotlight
  radius 25
  falloff 30
  point_at <0, 0.3095, 0>
 }

 cone {
  <0,-0.5, 0>, 0.0
  <0, +0.3,0>, 0.4
  pigment { rgbt<1,1,1,1> }
  finish { ambient 0.0 diffuse 0 }
  hollow
  no_shadow
  photons { pass_through }
  interior {
   media {
    scattering {3, Red*0.7 extinction 1.0 }
    samples 1,1
   }
  }
 }
}

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