The LD-850-40-50-N-2 from OPELUS Technology Corporation is a Laser Diode with Wavelength 840 to 860 nm, Output Power 0.04 W, Operating Voltage 1.8 to 2.4 V, Operating Current 65 to 75 mA, Threshold Current 15 to 25 mA. More details for LD-850-40-50-N-2 can be seen below.