Well here is the first attempt, probably made a little more complex than needs be.

Temperature on the blackbody is set to 2800 and LightFalloff is Quadratic the emission strength is set to 40 but the reason for this is the fact is the emission is set on the bulb and there appears to be no way that to make the lampshade transparent to any degree.  I tried using the same set up using the lampshade itself and had to drop emission strength to 0.8 to stop the shade blowing out.  Of course none of this would be a problem with a naked light such as a strip light, down lighter or spot light. 

It is certainly something I will be playing with a lot more.

 

 

I use Poser 13 on Windows 11 - For Scene set up I use a Geekcom A5 -  Ryzen 9 5900HX, with 64 gig ram and 3 TB  storage, mini PC with final rendering done on normal sized desktop using an AMD Ryzen Threadipper 1950X CPU, Corsair Hydro H100i CPU cooler, 3XS EVGA GTX 1080i SC with 11g Ram, 4 X 16gig Corsair DDR4 Ram and a Corsair RM 100 PSU .   The desktop is in a remote location with rendering done via Queue Manager which gives me a clearer desktop and quieter computer room.