... reliability, high stability, long life,low price DM650D1 Red Laser Module Characteriscics:High-quality laser diode,optical glass lens, driver circuit ... *23mm, 10*30mm,12*40mm,12*45mm,14*45mm,16*65mmFocus: fixed / adjustablematerial of module housing : cooper / aluminumSpan of Life: 8000-10000hoursSpot ... .init( { 'aImgSrc': aBigImageSrc } ); } )(); 635nm ~660nm (1mW~250mW) Red Laser Diode Module