The HGC-L30A005R42-660 | SMD3030 from HGC (Singapore) Technology is a LED with Forward Voltage 2.1 to 2.4 V, Forward Current 350 to 700 mA, Wavelength 655 to 670 nm, Power 0.735 to 1.68 W, Operating Temperature -40 to 85 Degree C. More details for HGC-L30A005R42-660 | SMD3030 can be seen below.