AA Solar 350W Mono Half-Cut PERC PV Solar PanelMonocrystalline solar panels have the highest efficiency rates since they are made from the highest grade silicon and are very space efficient Half cell modules have solar cells cut in half, improving the modules performance and durability. Traditional 60 and 72 cell panels will have 120 and 144 half cut cells, respectively The front glass is made from 3. 2mm high transmission, low iron, tempered glass The AA Solar 350W Mono Half Cut PERC PV Solar