Turning on LED with Cable Stored Energy (VIDEO) University of Central Florida This video is under embargo. Please login to access this video. Caption Dr. Thomas and his team light an LED using energy stored in the outside coatings of an electrical cable. Credit UCF 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.