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Salami-Vice t1_j7o0pto wrote

Reply to comment by undefined7196 in TIL the first Blue LED wasn't commercially available until 1989 and bright blue LEDs weren't available until 1993. by j-merc23

Also allowed for the phosphorus converted amber (PC Amber). A bit lighter in tone than a regular amber which is very orangy. Thermally stable like a white, losing only 10-15% of its lumen output at operating temps vs the regular amber which would see 50% loss. Game changer for emergency lighting.

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