Solar Board® Thin, semi-rigid and unbreakable (contains no glass), the lightweight SolarBoard series is the advanced solution for remote, off grid cabins, and keeps electrical systems humming on 12v RV and pop-up campers. Shock and weather proofed to be mounted permanently outdoors maintenance-free. Solar Board® 7 Product Details Completely waterproof 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 High efficiency, triple junction solar technology 7 watts, 400 mA, 12 volts Dimensions: 18.9x14.1" Size: 1.5mm thick Solar Board® 14- Product Details Completely waterproof 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 High efficiency, triple junction solar technology 14 watts, 820mA, 12 volts Dimensions: 27.4x14.1" 1.5mm thick Solar Board® 27-Product Details Completely waterproof 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 High efficiency, triple junction solar technology 27 watts, 1580mA, 12 volts Dimensions: 51.6x14.75" Size: 1.5mm thick