Not sure if this is the right place, but I'm hoping to ask two questions: 1. I shine a laser pointer at a mirror at night, and the reflecting beam glaces off of my eye. Obviously it's quite bright, and I want to know if this has caused any serious damage. Of course I shut my eye, but apparently only 5mW is safe for eyes. 2. Does anyone know how to estimate the power of this pointer? All that's said on the laser is that its max power output is less than 1000 milliwatts. That's obvious. The model is apparently a "JD-303". I looked that up, and it's a 500mW laser, which doesn't seem right. From this video , it seems that 500 mW should be able to burn anything, from my eyeball to my bedsheets- which mine can't do. It's quite bright- At night, if I shine it out of my window, it (the whole beam, not the dot) clearly goes for quite a few kilometers. (allowing me to point it into hotel rooms and such.) The battery in the laser: "BRC 18650 4800mAh 3.7Volts lithium ion battery" Perhaps that helps. is it just that my laser has a bad focus/lens, since it's apparently not very powerful? Perhaps the battery stats can help explain the power output of this laser. Will I need to see a doc....? oh. and I bought this laser off the street....... In China. I honestly don't know if it's a fake, but from what I can tell, so far it is actually quite authentic. I don't think that just because I purchased this off the street that it should be considered fake, although it's a possibility. I'm not sure if street peddlers can really sell fake lasers though.