I remember buying 50 bags of these!
Last full bag left from that project. These were purchased to be soldered to the board, but NEVER turned on! They were used as fillers for a retro style digital clock. What a nightmare to hand load and solder as no pick and place houses for through hole LED's were available.
Oh well....Far ago, Long away....
If anyone wants the bag lemme know.
EDIT: I must let you know in advance that the QC on these was obviously pretty low if you look at the label. The intensity of the light varied. But since they were purchased only as unlit fillers, it did not matter to me. But the LED's do work.