Very good lighting quality, the light sensor is truly amazing! When you hold it in your hand, the first impression is that it is a heavy headlamp! However, once it is placed on the head, you really don't realize you are wearing it. The only thing that bothers me, and I give it 4 stars until I get used to it, is that the spiral cable that connects to the back where the battery is located and powers the lamp has a particular weight and bothers the ear. I think there was no reason to use a spiral cable as if it were a phone headset from the 80s-90s that adjusts the distance! With a much thinner and clearly lighter cable, it would do exactly the same job without being bothersome since it could be placed in a small pocket of the elastic strap that ties to the back. The battery life is very good!

I have been using it for a year now, it is very lightweight, its functions are very easy to use, it fits very well on the head, it doesn't move at all, it is 100% waterproof, it has great battery life, it even detects the light from dawn and moonlight. It requires much less charging than what the manufacturer claims.