LED Lamps: Less Energy, More Light (image) Fraunhofer-Gesellschaft Share Print E-Mail Caption Gallium nitride transistors enable the compact design of this 2090 lumen retrofit LED lamp (exploded diagram for purpose of illustration). Credit © Fraunhofer IAF Usage Restrictions The picture may be used for editorial purposes only. It is protected by copyright. The use is free of charge if the reference is mentioned. Share Print E-Mail 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.