The thread of the battery replacement nut is loose, visually about twice as loose as in the Fenix PD25R. The switch is pressed by a white plastic cap, like in a market flashlight. Good ones have a threaded compression ring. The switch itself also seems to be of poor quality, because sometimes it flickers, as if something isn't making contact. The clip is thin and they didn't even manage to bend it properly, so there's a gap. It holds on very weakly, weaker than the one on the Olight. The upper ring, the one next to the lens, can be unscrewed, and that's a plus, because thanks to this (maybe) the flashlight can be repaired if it ever breaks down. The O-ring under this ring was twisted. During assembly, someone installed it twisted, and that's bad because it affects the tightness. These are all my impressions right after taking it out of the box. They're not very good. The flashlight is quite bright, but with a very unpleasant cold light. The color rendering also seems to be quite poor. Unfortunately, I do not recommend this flashlight. It's better to pay extra and buy something from Olight. Or Fenix. In my opinion, this flashlight is too expensive for what it offers. I write this with regret, because the Mactronic brand is probably Polish...