The wand itself, even if it is given an ambient strength of 0.5 or 0.75 won't cast enough light.  So, I make a mesh shaped like the glowy parts -though often lower poly- but slightly skinnier, so that the emitter mesh fits just inside the wand.  This emitter -hidden inside the wand- can be given an ambient strength of 5, or even 32 (the max Poser seems to acknowledge), so that it does cast light.

     Here's a diagram:

.  .

Poser 12, Poser 13, Poser 14, in feet.  

OSes:  Win7Prox64, Win7Ultx64, Win11

Silo Pro 2.5.6 64bit, Silo 2025.1, Vue Infinite 2014.7, Genetica 4.0 Studio, UV Mapper Pro, UV Layout Pro, PhotoImpact X3, GIF Animator 5