In case Ultraviolet lights are something that puts your senses on active mode, and makes you want to get some protection, this bracelet can help you out.

Simply said, it measures the strength of the UV lights, and changes the color of the center circle according to it - “the darker the center gets, the greater the exposure to UV radiation”.

But if you don’t usually worry about this kind of problems, just save $4 and get yourself a beer. Even better if you drink it on direct sunlight!

Cloudy and overcast days seem to pose less of a risk for UV radiation but that’s not always true.