This Tallmax M module integrates various technologies like half-cut cells and multi-busbar, with the highest power up to 415W. Multi-busbar can shorten the current conduction distance by over 50% and thus lower the internal ribbon resistance loss. With finer and narrower busbars, more sunlight can be reflected back to the round ribbon, thus increasing energy efficiency. Besides, the unique circuit design of half-cut cells can reduce power loss caused by ribbon resistance to 1/4 compared to full cells, which results the decrease of electrical resistance within the ribbon and finally improves the overall module efficiency by more than 2%.