... module with 25years life time 2.1 Piece 12V/7ah sealed maintenance-free lead acid battery These solar system are used for Lighting ... , Ipod , Game player, DC TV etc , They are green and free power station for the Island, remote mountain areas ,pasturing areas ... life time.2. Control box with 1 Piece 12V/7ah sealed maintenance-free lead acid battery bank inside3. One piece 12V/3W LED ...