Completely waterproof AMP 1.5 series connector Impact-thin film resists damage from gear of foot steps Amorphous cells function in all weather and light conditions Advanced laminate construction for extreme durability and waterproofing Reverse discharge protection will not discharge batteries at night Including 9 foot extension cable Output: 450 mA, 12 volts Dimensions: 13.75 x 27.4in, 2mm thick Weight: 25.4 oz