Coleman 2.5 Watt Solar Battery Maintainer Twin Pack - Model# 58216 Two 2.5 Watt solar panels use suction cups to mount on the windshield of cars, boats, RVs, farm machinery and more Amorphous solar panels operate in all weather and daylight conditions, even cloudy days The included 12V DC plug and alligator battery clamps provide two options to connect to the battery (not included) Includes O-ring connectors with fuse Durable ABS plastic solar panels for long life