Luminous Crystal Ball - Na Material, Small Round, Green | Uv Detection, Color Changing, Light Sensitive, Decorative

We are offering our customers a wide range of Luminous Crystal Balls. Seemingly ordinary transparent beads, or ultraviolet radiation in sunlight will be issued under the different colors, mysterious and wonderful products! Color beads can be quickly and accurately measure ultraviolet radiation, according to the intensity of light, showing different shades of color. Will be tested before going out handsome beauty UV intensity, the best product to protect skin.
This product is the use of UVA light-sensitive elements of energy will be key to open, making it jump from the low-order high-energy band. From the seemingly ordinary transparent beads, in daylight or ultraviolet irradiation, which becomes colorful. When the loss of ultraviolet radiation or temperature exceeds 45 ?, the light-sensitive molecular bond close, that is, revert to the original colorless color. Mysterious and wonderful products!