Bright Blue LED Light Yields White Light (IMAGE) University of California - Santa Barbara Caption This illustration demonstrates how bright blue LED light, shone through its complementary yellow phosphor, yields white light. Credit UCSB 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.