Actiflash is a stable Tamoxifen-like photoactivable inducer to perform a spatial and temporal control of your favorite proteins under illumination. It can convert an inducible ERT model to a photoinducible one or help control transcription (using Gal4-UAS). You can induce recombination (using Cre-lox) in space and/or time for in-vivo cell tracking experiments and more.