These are Common-Anode type which means you connect one pin to 5V or so and then tie the other three legs to ground through a resistor. We carry and use CA more than CC because multi-LED driver chips (such as the TLC5940/TLC5941) are often designed exclusively for CA and can’t be used with Common-Cathode.
Each order comes with 10 LEDs.
0.3″/7.6mm on each side, square. Sometimes called ‘Super flux’ or ‘Piranha’
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