Sunforce 50048 60W Solar Charging Kit Amorphous solar charging kit provides up to 60 watts of clean, free, renewable power Designed for RVs, cabins, homes, boats, back-up and remote power use Weatherproof, durable solar panels can withstand impacts from hailstones travelling 50 miles-per-hour Built-in blocking diode helps protect against battery discharge at night Complete kit includes four 15W amorphous solar panels, a PVC mounting frame, a 7-amp charge controller, 200-watt inverter, and wiring/connection cables