Top emitter is XR-E, bottom is XP-E
Q5 is just the bin.
^ very helpful resource
XR-E often, in my experience, have a plastic centering piece holding the star+emitter in place. XP-E don’t have that super dome the XR-E has and XP-E often has the silver reflective piece around the emitter (this piece loves throwing wicked ugly artifacts into the beam too).