Vevor's 2-piece 100W bifacial solar panel set uses N-type monocrystalline cells with at least 23% conversion efficiency for dependable off-grid power. The panels capture direct sunlight on the front and reflected light on the rear to improve energy generation. Built with MC4 output, an aluminum frame, and IP67 protection, they are designed for reliable outdoor use in a range of environments. These panels are suitable for RVs, boats, rooftops, farms, yards, cabins, and other off-grid applications. Mounting brackets, controller, battery, and alligator clips are not included.