Ideal for cars, SUVs, RVs, boats, tractors, trailers, electric fences, and much more. This solar panel charges in all weather conditions. Trickle charge and maintain 12V batteries in a fully charged state. Plugs into 12V DC plug or directly to the battery. Weatherproof & maintenance free. Little installation required. Includes: 9' (2.74m) of cable, 12V DC plug, battery clamps, mounting hardware. Max output: 6W, 415mAh, 14.5V. Power Output: 6W. Dimensions of 16.7" x 13.1" x 1.5" (42.42cm x 33.27cm x 3.8cm).