... ,700mW,800mW,900mW,1000mW high power Green Laser Pointer Model no.JL-051Feature:Portable laser,drived by batterySpecial safety ... 5000hours.Clearly visible in the dark and lighted area.High quality, sustained output power with well tested.Come with ... ,led indicatorExpected lifetime(hours)>5000 hoursLaser type:Visible laser diodeOperating temperature0-40Storage temperature-10~50Dimension40 diameter ×225mm ...