... panels: 7.5 W + (1.25 W *4) = 12.5 Product descriptionSolar digital camera backpack, travel bag,laptop bag,charging bag X-SX08Item ... all 6 V charging requirements of digital products.9 V / 12 V 2 A, support zoom digital camera, DV, portable electric drill, air pump ... car battery charging. 24 V support truck battery charge. Solar digital camera backpack, travel bag,laptop bag,charging bag X-SX08