We did make a Luminaire Luminare object when we first created OpenStudio that works just like a Lights object, except it does have a position in space and an orientation/rotation. Another difference is that it can only be (W) vs. (W/person) or (W/area). The intent was at some point in the future this could be used for Radiance simulation of electric lighting (vs. daylighting) but that isn't on our short term plan.