The 12V System Wired Together (IMAGE) American Institute of Physics Caption This is the prototype system consisting of a solar panel and 12V LED lamp wired to a battery pack containing three Samsung Galaxy Note 2 batteries. Credit Diouf/Kyung Hee University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.