lisalover on Nostr: nprofile1q…3ff7f Maybe it's some cultural thing I'm missing here, but blue GaN LEDs ...

nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpqsc2cplgdndq83stskhzv3rgh3avqq3nrrsdmt3af8g4e2umjt3nq23ff7f (nprofile…ff7f) Maybe it's some cultural thing I'm missing here, but blue GaN LEDs were not only invented years before 2014 (around 1995), but good enough for white led illuminating since early 2000s. I bought my first single blue 5mm standard LED (If=20mA) about 2003, and it cost corresponding to about $10. Even during the 80s there were pseudo-blue LEDs of low intensity.