... current:1<250mAColour of laser:GreenWorking voltage:DC=3VColour of pen:Black rubber paintWorking temperature:0~+30Range of the laserOver 500 ... the military, medical and astronomy, indicator, and teaching baton 1 mw,10mw,20mw,30mw,50mw,100mw,200mw,300mW,350mW,400mW,500mW ...