1.9mm Axial LEDs | Railwayscenics
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1.9mm Axial LEDs

These 1.9mm LEDs ( Light Emitting Diodes) have side entry pins as opposed to the bottom entry ones on a standard through hole LED. They have a 1.9mm dome on a 2.2mm clear or diffused square body. These LEDs do require a inline series resistor.

This means they are small and compact and can be used for building illumination or anywhere there is a lack of room.