About the single- crystal solar panel.We could supply 1W to 180W. The size includes of 100*50*33mm,660*660*28mm, 1314*980*35mm and so on, the size and typical will according to your requirement. The typical of 50W: Short circuit current: 3.2; Open circuit voltage: 21.6; Opimum power voltage: 17.2; Optimum operating current:2.9; weight:5.8KG Size: 660*660*28MM Package: 5pieces in carton. 50000W will be pakced in 20'container.