Use Amorphous silicon solar cells Power: 13 Watts maximum Working voltage: equal or greater than 14V Working current: equal or greater than 750mA Dimension: 20.07″ x 14.76″ x 1.57″ (510mm x 375mm x 40mm) Product DescriptionThe Briefcase Solar Generator can charge a wide range of applications, can be served as battery maintainer for marine boat, [...]