With tempered glass set in a sturdy aluminum frame to assure years of weatherproof and maintenance-free performance, these high-efficiency solar panels feature monocrystalline silicon cells to provide greater power output. Integral multiple bypass diode design minimizes power drop caused by intermittent shade, ensuring consistent power for battery charging, pumps, lighting or any application requiring reliable 12V power. Compact 10, 20, and 30W models feature versatile quick connect technology. Larger capacity 60W model employs wire connection to junction box. Complete with weatherproof junction box mounting hardware, LED voltage tester and additional wire to connect to a charge controller.