... .25 W *4) = 12.5 Product descriptionSolar digital camera backpack, travel bag,laptop bag,charging bag X ... digital products.b.(eight file adjustable output) 3 V 1 A, support AA battery box of charging, LED head ... lamp, etc.6 V 1 A, support all 6 V charging requirements of digital products.9 ... . 24 V support truck battery charge. Solar digital camera backpack, travel bag,laptop bag,charging bag ...