The glass in both models is the same and is pretty darn good. It's not on par with European alpha glass but IMO better than Leupold VX-3, Nikon Monarchs, Weaver Grand Slams etc.
The main difference between the Accupoint & Accupower is the reticles offered and the type of illumination of the reticle in low light or night time conditions. The Accupower also runs several hundred dollars less in price.
The Accupoint model uses tritium for illumination of the fiber optic reticle. The Accupower uses a standard CR2032 Lithium Battery.