Mono Cell: 156x156mm Up to 21.3% efficiency, one of the highest performing mono crystalline PERC cells on the market Four bus bars boosts current collection over the entire cell area, leading to higher fill factors and MORE POWER Blue anti-reflecting coating allows more sunlight be captured and converted to electricity Finer, closer fingers improves charge collections for improved energy yield Lower light-induced degradation leads to greater power output over the entire module lifetime All solar cells are tightly classified to optimize output of module Maximum yield and longevity due to hotspot prevention Premium appearance results in a highly uniform and aesthetically appealing module