With healthy batteries you can watch TV, DVDs and video games wherever you choose to stay! Kits keep your batteries charged and healthy, giving you the freedom to run lights, furnaces, fans and more DC appliances without worrying about running out of power. Ruggedly durable solar panels mount securely and without worry of leaks. Includes a 22 amp digital charge controller to prevent overcharging batteries and hardware. Maintenance free so you can enjoy decades of uninterrupted power. 1 per box. 47 1/4" L x 20 1/2" W