 
            | Photoreceptor | AsLOV2–SsrA | 
| Binding partner | SspB | 
| Cofactor | FMN | 
| Source organism | Avena sativa | 
| Mode of action | heterodimerization | 
| Excitation wavelength | 450 nm | 
| Reversion wavelength | dark | 
| Excitation time | seconds | 
| Reversion time | seconds to minutes (variants available) |