JEDI-2P is a genetically encoded fluorescent voltage indicator. It contains the following amino acid replacements relative to ASAP2s : N124V, H152E, T207H, N391D, Q397H, R406K, Q451R (FBrf0254411). For detailed kinetic and spectral properties and a comparison of JEDI-2P with other fluorescent voltage indicators, see FBrf0254411.