Deep red LEDs

mcjtom · 2024-10-20T21:43:58.031Z

Is the SST20-DR, with the nominal peak at 660 mm, the only popular LED suitable for flashlights?

How spectrally wide is such a red LED?

INeedMoreLumens · 2024-10-20T23:36:19.645Z

The CREE XP-E2 Photo Red is also fairly popular.

Snippet from the XP-E2 datasheet: