The JA Solar 405W Mono MBB PERC Half-Cell All Black MC4 module offers unsurpassed performance with a module efficiency of 20.7%, width of 1,134mm, and height of 1,722mm. Its half-cell technology maximizes power output and reduces shading effect and temperature coefficient. It also has superior mechanical loading tolerance and is supplied with Staubli MC4 connectors and 1200mm output cables.