I don't know what the detour about sanitizing with UV LEDs was about, especially calling them "blue LEDs". UV leds most certainly exist, and not just the cheap

I don't know what the detour about sanitizing with UV LEDs was about, especially calling them "blue LEDs". UV leds most certainly exist, and not just the cheap barely-past-blue violet ones. I remember designing a product prototype using some, which I think were 320nm or 340nm, around the time that blue LEDs were the hot new thing. IIRC they were like $10 ea in small quantities, while blue LEDs were maybe $1 ?