tero999 t1_j7oof6s wrote on February 8, 2023 at 8:42 AM Reply to TIL the first Blue LED wasn't commercially available until 1989 and bright blue LEDs weren't available until 1993. by j-merc23 LGR has a great video about blue LED https://www.youtube.com/watch?v=yoTALRhAqWc Permalink 1
tero999 t1_j7oof6s wrote
Reply to TIL the first Blue LED wasn't commercially available until 1989 and bright blue LEDs weren't available until 1993. by j-merc23
LGR has a great video about blue LED https://www.youtube.com/watch?v=yoTALRhAqWc