Wafer thin lightweight and can mold to a curved surface. These Semi-Flexible Solar Panels are made of the high efficiency mono-crystalline solar cells and strong enough to be walked on. They are weather water and corrosion resistant making them a perfect option for marine applications RVs camping and emergency back-up These Panels can continuously recharge your 12-Volt batteries (not included) with the power of the sun. Light enough to mount on a window with suction cups and durable enough to mount permanently outdoors on a range of vehicles.