... reliability, high stability, long life,low price DM532D5 Green Laser Module: Characteriscics:High-quality laser diode,optical glass lens, driver ... of power supplyL×W×H=238×146×102mmCabel-laser head1.0, 1.5mWeight of laser head2.6kgWeight of power supply2.3kgTTL ... laser modules ,like as dot ,line /cross line laser module,DPSS laser,uniformline laser,single longitudinal mode green laserbeam expander ...