4 stars because 1W is not even a joke. But for the money and for 100-200mW it's just fine. It still works with its own batteries for me almost 3 years later.

After 1 year of proper use, it works normally. If you notice that the new batteries you put in do not give it power or drain quickly, it's the batteries' fault. Good new ones give it a clear 30'

Okay, it's what they say, you get what you pay for. It worked for about a day and I'm not talking about using it for hours. Just a little in the morning and at night, playing with the cat for about 10-15 minutes. I have changed so many batteries and the laser just died. It's not what I expected and I didn't expect much from a €5 laser, but at least it could have lasted a week

Very bright and reaches a distance of at least 200 meters at night. The only downside is that it quickly consumes batteries.

Very good. The quality is very good, it is powerful and easily reaches 5km as it says. I give it 4 stars because as soon as I press the button, the light comes out strong and after half a second, its intensity drops by half and becomes more faint. And I know you'll tell me that the battery doesn't make such good contact, I take them out and put them back in after 1 minute, but it's still the same.

I bought it solely for playing with my cat, which absolutely loves it!
(However, be careful when chasing it because the laser beam is quite strong, so those of you who buy it for the same reason as me, be cautious.)
Also, do not aim it at someone's face, especially from a close distance.

I haven't had to change the batteries yet, and even after a couple of falls from a relatively 'good' height, it still works perfectly as if it never fell.
Value for money.