The LONGI 550W Mono Half-Cut (120 cells) solar panel is a high-performance module using monocrystalline half-cut cell technology. By splitting the solar cells into halves, it reduces resistive losses, improves shade tolerance, and enhances output under less-than-optimal lighting. With a large 120-cell configuration, it delivers high voltage and current output, suitable for large home, commercial or industrial solar setups. It typically features strong tempered glass, anti-PID performance, a robust aluminium frame, and long warranties (performance & product). Efficiency is high, heat coefficients favourable, making it reliable under tropical conditions.