Features:Channelrhodopsins are light-gated ion channels that exist naturally in microalgae. hChR2 is a humanized version of ChR2 for mammalian expression. It is maximally excited by 470 nm light. hCHR2 (E123T/T159C) is a mutated form of ChR2, also known as ChETA (TC), suitable for high-frequency activation with an activation wavelength of 470 nm.