So can anyone try and guess what this guy is talking about?
Hello people, I bought the green laser and it all has been well supplied. Although there needs to raise a lot of patience because the delivery will take very long, almost 4 weeks, but when you experience it once did that is understandable. The laser was unfortunately not quite right, because the battery gets a bad connection. It is because because the housing is out 2mm to 3mm in size. To solve this problem there are two pieces of copper two-cent coins to get in the back to compensate for this distance against better contact. Furthermore, I reached Noted that the laser power is not quite at the 3000 mW line. By measuring the current I am with three 1.5 V batteries (4.5V), I have come to a maximum value of 420 mA. Mathematically, this results in pure (P = V x I) is a power value of 1890 mW in the circuit, so the actual line, the laser I have this against all attempts to perform again with fresh batteries, and am therefore come at a voltage of 4.7 V to a maximum peak current of 0.5A. This yields a value for the laser power of 2.35 W which does not quite reach to the 3W. You also have to correct a little the idea it was to see the laser beam during daylight hours. Is not the case even if the sky radiates only diffuse daylight. In a darkened apartment, however as at dusk is a Wonderful Eye for an infinite long green laser beam visible. Nevertheless, I am broadly satisfied with the delivery and the seller can recommend with all the friendship continues. I am also pleasantly surprised that over such long distances is a commercial relationship with China is very successful. thank you Martin Radespiel