High-quality laser diode,optical glass lens, driver circuit and housing High reliability, high stability, ... price DM650D1 Red Laser Module Characteriscics:High-quality laser diode,optical glass lens, driver circuit and housingHigh reliability, high stability, long ... % 10Hz-50MHzPower stability±1, 3, 5% over 8 hrs rmsOptical axis height93.5mmSize of laser headL×W×H=333×140×125mmSize ...