... glass lens, driver circuit and housing Better line quality DM650L5 red line modulated laser module Characteriscics:High-quality laser diode,optical glass lens, driver circuit ... ~70 °CStorage temperature:-20~80 °CDimensions:3.8*10, 6.5*11mm,9*22mm,10*23mm, 10*30mm,12*40mm,12 ... .productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); 635nm ~660nm (1mW~250mW) Red Line Laser Module