The FMXL-635-ZZZ-Q-FCW from Blue Sky Research is a Laser Diode with Wavelength 635 nm, Output Power 0.0000015 to 0.00002 W, Operating Voltage 2.2 to 2.8 V, Operating Current 30 to 130 mA, Threshold Current 25 to 65 mA. More details for FMXL-635-ZZZ-Q-FCW can be seen below.