The AluLight is used where you cannot allow for roof penetration.  The PV modules are loaded with concrete weight.  The AluLight allows for PV modules to be mounted on flat roofs where the concentration of panels on the roof is important and where reduction of loading on the roof is required.

The tilt is fixed at 12 degrees and modules are connected using top-down clamps.  We can only use these in places closer to the equator due to the tilt angle being so small.