This model is based on one that i saw at a shop center, although the model is a little bit diferent, cause it just has 3 bars.
You can use it on the ceiling , wall or even on a surface at the floor, anyway it is optimized for ceilling because it has no switch.
each bar is carefuly arranged to avoid bar intersection.
The light part is not detailed it just has a glass involving as you can see (2nd thumbnail)
geometry is all open i mean i did not conveft to Poly thng, so you can adjust your number os faces and so :P