The Davis Instruments 6616 Extra Solar Panel Kit provides an additional charging power by using two solar panels to charge the battery in your solar power kit (6612 or6614) for installations where sunlight is limited. The 5.0-watt solar panel is mounted on a weather-resistant shelter in which a console or Envoy can be mounted. Includes the 5.0-watt solar panel, weather-resistant shelter, and a 4 foot (1.2 m) cable.