Mixing Speed Affects Quantum Dot Light (IMAGE) North Carolina State University Caption Researchers have discovered that the speed of mixing ingredients for quantum dots used in LEDs changes the color of light they emit -- even when all other variables are identical. Credit Milad Abolhasani Usage Restrictions Image credit must be given. 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.