These HP-made 3mm surface-mount style LEDs come with soldering-iron friendly long leads. They glow brilliantly on only 10mA, and are still visible on only 3mA current – ideal for indicator lights on low-power outputs of microcore and bicore circuits! These LEDs are particularly fun when run reverse-biased with our “Major Henry” coil, as they blink brightly on the back-EMF current generated by the coil. Combine different LED colours, and get the special “10 for” pricing!