The LN452YPX from Panasonic Corporation is a LED with Forward Voltage 2.2 to 2.8 V, Forward Current 30 mA, Luminous Intensity cd 0.0005 to 0.0015 cd, Luminous Intensity mcd 0.5 to 1.5 mcd, Reverse Current 10 µA. More details for LN452YPX can be seen below.