... green laser pointer Support temperature control,key switch,led indicator Visible laser diode Product name: 300mW,350mW,400mW,500mW,600mW,700mW,800mW,900mW,1000mW ... high power Green Laser Pointer Model no.JL-051Feature:Portable laser,drived by batterySpecial safety design:on/off botton,key switchHigh power green laser pointer ... ,ktv etc.Package contentGreen laser pointer,1.18650 battery,battery ...