The 210 mm solar cells are known as PERC (Passivated Emitter and Rear Cell) or heterojunction solar cells.
High efficiency: offers high conversion efficiency of solar energy into electricity, and can achieve efficiencies of over 20%.
Size and power: they capture more sunlight, which translates into higher power output.
Cost reduction: they are optimized to maintain good performance even in low-light conditions.
Durability and longevity: they are long-lasting and resistant to environmental conditions.