I have searched quite a bit for complete datasheets for Nichia 5mm LEDs. They don't seem to be on their US or Japanese websites (only partial datsheets available). Where can you get these?
For the white and blue LEDs: .[url]www.nexus-x.de/led.[/url] Follow 'LED katalog'. Their white and blue LEDs are Nichia's, and they have a datasheet (full details) by 'datenblatt'!