The QSDM-680-2 from QPhotonics is a Superluminescent Diode with Wavelength 670 to 690 nm, Output Power 1 to 2 mW, Bandwidth (FWHM) 8.34 to 10 nm(Spectral Width), Forward Voltage 2.5 to 3 V, Forward Current 250 to 300 mA. More details for QSDM-680-2 can be seen below.