The RLT635-150-TO3 from Roithner Lasertechnik is a Laser Diode with Wavelength 630 to 642 nm, Output Power 0.15 W, Output Power (CW) 0.15 W, Threshold Current 400 to 450 mA, Operating Current 0.6 to 0.65 A. More details for RLT635-150-TO3 can be seen below.