Normal configuration of panel module: Solar cell is a single electricity-generating device, equal to one cell of about 0.5v voltage; While panel module is equivalent of a pile constituted by several series connected or parallel connected cells. The composition amount of solar panel module is usually decided by system voltage (storage battery voltage); Usually, module voltage is 1.4 to 1.5 times of storage battery voltage. For example: Storage battery voltage is 12v; Module voltage is generally between 16.8-18v, so the cell amount is 18v/0.5v, which is 36. Therefore, the number of common used cell is 36 or 40; High-power module is 72.

Power range: Monocrystal silicon solar cell has various models as 5W, 10W, 15W, 20W, 25W, 30W, 35W, 40W, 45W, 50W, 55W, 60W, 65W, 70W, 75W, 80W, 85W, 90W, 95W, 100W, 110W, 120W, 130W, 140W, 150W, 165W, 180W and etc. (some products may be custom-made according to the.