Monocrystalline panels are the most efficient solution over all models at converting sunlight to electricity. Since these panels are more efficient you need fewer of them and, if you have limited space, these may be a great option. Works with cars, SUVs, boats, ATVs and more. Weather, water and corrosion resistant. Wafer thin, lightweight and unbreakable with a protective plastic film coating. Can mold to a curved surface and is flexible up to 20°. Temporary installation with included suction cups.