... 30, 50, 100, 150mW green laser pen, point styleWell tested, high quality, fast delivery timeFunction: laser pen, laser pointer, Used in ... 2mradBatteriesAAA*2pcsBeam diameter1.5mmclassIIIBFeature:Adding extra cooling systemWell tested and high quality green laser pointercontinuous outputUsing long lifetime chip, more than ... under the supervision of an adult. laser pointer pen, green color, point style