A team of scientists led by Dragomir N. Neshev from The Australian National University, Friedrich Schiller Univer-sity Jena, Germany and Sandia National Laboratories, US has demonstrated a new way to electrically tune the spec-tral response of a Mie-resonant dielectric metasur-face. The metasurface paves the way for new different types of electro-optical devices, including dynamic displays and holograms.