By only slightly shifting the wavelength of blue or red, the value for the human eye (illuminance and luminance) changes greatly.
Are you still registered with CCS members?
If you register as a CCS member, you will be able to log in and register with the CCS members, download various materials (drawings, instruction manuals etc), select "lighting selection", "apply for lending machine", " It becomes possible to browse and download all contents of our site including request of "quotation" and "catalog", and it will be possible to use many convenient functions. Come and register.
