Sunsei 71015 SE-24000 400-Watt 16.5-Volt Solar Panel Generator 400-watt 16-1/2-volt charger provides renewable alternative to noisy diesel, propane and gas generators Ideal for back-up power in cabins, cottages, RVs and boats Produces 400 watts of high-efficiency polycrystalline charges for multiple batteries at once Includes 3 crystalline solar panels, 3 10-foot 12-gauge power cables, connector wires, 36 mounting brackets, and 2 Sunsei expansion kits 2-year limited warranty