The higher the value, the whiter or "cooler" the light appears. Fluorescent lamps uses many different types of lamp bases: single-pin T-6, single-pin T-8, single- pin T-12, bi-pin T-5, bi-pin T-8, ...
It is generally accepted that excitation with longer-wavelength light entails less ... (versus 508 nm for wild type) 1. For a time, however, it appeared that fluorescent protein engineering ...
Although there are many types of photoswitchable fluorescent proteins, all of them share the trait that light of a specific wavelength and intensity can change their spectral properties.