The C503B-ACS/ACN-030 from Cree LED is a LED with Forward Voltage 2.1 to 2.6 V, Forward Current 50 mA, Luminous Intensity cd 5860 to 6800 mcd, Luminous Intensity mcd 5860 to 6800 mcd, Reverse Current 100 µA. More details for C503B-ACS/ACN-030 can be seen below.