Grahikum 5MM Blue LED Light Emitting Diode Highlight for Arduino (Pack of 50) Electronic Components Electronic Hobby Kit
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LEDs - those blinky things. A must have for power indication, pin status, opto-electronic sensors, and fun blinky displays. This is a very basic 5mm LED with a blue lens. It has a typical forward voltage of 3.4V and a rated forward current of 30mA.
