Can someone give some pointers on setting up a primitive to use as an emitter, for example a ball as a light source to look as if a lamp is turned on. And how it should be set up in poser. And does it make a difference on the size of the object and how much light it will emit? Also, should it be transparent etc?  (Hope this makes sense! lol) Newbie with this, can ya tell!  Thanks

Poser 9 SR3  and 8 sr3
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Processor Type:  AMD Phenom II 830 Quad-Core
2.80GHz, 4000MHz System Bus, 2MB L2 Cache + 6MB Shared L3 Cache
Hard Drive Size:  1TB
Processor - Clock Speed:  2.8 GHz
Operating System:  Windows 7 Home Premium 64-bit 
Graphics Type:  ATI Radeon HD 4200
•ATI Radeon HD 4200 integrated graphics 
System Ram:  8GB