There may be some nice emissive lights, lurking in the Materials section of your official Poser 11 Library…
These are Vince Bagna’s light emitting materials for the SuperFly render engine. I’m not sure if some of these shipped with the Poser 11.2 freebies bundle or not (I still haven’t found a full list of exactly what ships with Poser 11.2), but I have the materials/shaders in the main Poser 11 runtime.
Despite several hours of trying I just cannot figure out how to get something realistic out of them, though. “Light Emission” works great, but makes the sphere it’s applied to invisible every time.
The “Light Neon” material keeps the sphere visible, but lacks the realistic ground surface light-spread which “Light Emission” has.
Neither offers light-spill at the edges of the sphere, and nor can this be faked by duplicating and having sphere-in-sphere — because the materials have no transparency settings at all. Nor can the two be combined in-scene in any useful way.
Getting something nice thus entails clunky mashing together of two such renders in Photoshop, then apply a slight rim haze via filters. Still, it can be done…
Carrara 8 is DAZ Studio's official 'big sister' software.
Carrara loads all DAZ and Poser characters and scenes,
and supports LuxRender for top-quality realistic rendering.