At first I thought that they brought a defective laser! But after watching videos on YouTube, I realized that this is not so. Rays Different in brightness! The horizon is brighter than the vertical, and it was also embarrassing that the Ray flickers . not much, but you can see it. Flicker is made to work with the receiver! But again, I learned about this from a video on YouTube. And this flicker, as it turned out, does not affect the perception of the beam during operation. In work, it is very convenient, and after a few days, I can say that I did not regret the purchase! You can see the Ray very well, even during the day, in sunny weather, I can also name the minuses, the batteries run out quickly, 1.5 days somewhere, in Chinese they were enough for a week . I'll have to buy batteries
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