Pendant style variety, random shipment.
Sunlight ultraviolet exist in all the year round, winter is mild and foggy in the north, but uv light is weaker than summer just about 20%, would still be etc caused great harm to human body skin and eyes, long-term uv radiation is the most easy to cause the skin to produce all kinds of spots.
Ultraviolet -uv-not only can make the skin become black, sunburn, long spots, wrinkles, serious word will also make the skin produce the phenomenon such as skin cancer, but also because of uv damage to skin is so big, so protective measures to prevent bask in work, more is very important. So to test ultraviolet -uv-light intensity for the love of beauty at any time and pay attention to the health of women is particularly important.
Now can have such a test intensity of ultraviolet -uv-mobile phone chain, mobile phone chain to white when no ultraviolet rays, ultraviolet light, the more the more purple. If you see the mobile phone become a dark purple, it must to take protective measures, otherwise easy to damage the skin health.