Highly efficientThe solar panel uses high efficiency monocrystalline solar cells with a conversion efficiency of 23%-24%. Built-in bypass diode to better protect the solar panel Ultra-light and Flexible A single solar panel weighs only 4.0 pounds and is only 0.098 inch thick. It can be easily picked up and carried. The solar panel be bent up to 260 . Ideal for mounting on RV ,roofs, campers, trailers, boats, cabins, tents, and other uneven surfaces Highly Sturdy The solar panels come with an IP67 waterproof rating .Withstand heavy snow loads of up to 5400 Pa and high wind loads of up to 2400 Pa,suitable for outdoor weather Effective protection Solar controller has short-circuit protection, open-circuit protection,reverse protection, over-load protection. The intelligent charger regulator is suitable for lead-acid, geland lithium phosphate battery Functional Solar panels are connected to a 12V/24V system depending on the battery, perfect solution for power supply.