... temperature control,key switch,led indicator Visible laser diode Product name: 300mW,350mW,400mW,500mW,600mW,700mW,800mW, ... focus,with continuous outputSupport temperature control,key switch,led indicator.Long lifetime chip,expected lifetime:more than ... (included)SwitchConstant on/off buttonSupporttemperature control,key switch,led indicatorExpected lifetime(hours)>5000 hoursLaser type:Visible laser ...