Features：Chronos is a new blue- and green-light drivable channelrhodopsin with high light sensitivity and faste switching kinetics，It is maximally excited by 500~530 nm light.
The 1.2 Kb EF1α promoter is a commonly used, constitutive promoter derived from human elongation factor-1 alpha (EF1α). It is often used in conditions where the other constitutive promoters, such as CMV, have diminished activity or have been silenced.
