The PLW5630CB-4000 from Plessey Semiconductors Ltd is a LED with Forward Voltage 2.8 to 3.4 V, Forward Current 180 mA, Luminous Flux 45 to 65 Im, Reverse Current 10 µA, Operating Temperature 2.8 to 3.4 Degree C. More details for PLW5630CB-4000 can be seen below.