| Insect compound eyes contain light-sensitive receptors in which phototransduction takes place. |
| The peak wavelength for lumens and lux is 555 nm, whereas circadian phototransduction is more strongly influenced by shorter wavelengths. |
| Phototransduction by retinal ganglion cells that set the circadian clock. |
| Phototransduction involves a conformational change in the chromophore and activation of an opsin. |
