... quality laser diode,optical glass lens, driver circuit and housingBetter line qualityHigh reliability, high stability, long life,low price Applications: ... then 2mm at 5mFan angle:10°~135°Laser line accuracy:<30”(at 5m)Operating Voltage:DC3V-6V,AC/DC 8-24V(Φ16mm ... make many kinds of laser modules ,like as dot ,line /cross line laser module,DPSS laser,uniformline laser,single longitudinal mode green ...