The lens is good!! The only negative thing is that it doesn't have a button to turn on and off, and you have to be careful not to turn it too much when you want to close it, otherwise it might get water inside and break!! But it is good and illuminates well!!

I give it 3 stars because it does not have an on-off button. It opens and closes tightly, now whether it is convenient inside the water... meaning you have to be careful not to open it a little more and let water in. Having it on the wrist... not even close. Now, as for its durability, it reached about 15 meters, very good for its price. I would not recommend it to a friend because of the lack of a switch