A GaN LED (image) The Optical Society Caption A GaN LED, coated with a "factory-roof" pattern modeled off the fireflies' scales. The bio-inspired LED coating increased light extraction by more than 50 percent. Credit Nicolas André Usage Restrictions None 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.