I bought these for work and once I used them there, I had to order some for my own kids! These are wonderful! They turn colors as soon as exposed to sunlight (darker if in bright light, pale if in shade) and turn back to white immediately upon going back inside. They glow super bright in the dark after only being exposed to sun for a minute.
It not bad if you use it under UV light, but under the Sun its not like on picture, not so vivid. Glowing not so good too.
But not bad though with UV light only (!), do not expect so bright colors as on the picture
Im really pleased with this order. Every single bead activated in the sun and every one glows(green). I put mine on a lipped baking tray and seperated each colour. They all seemed to be of relative proportion per colour. Only one bead in the lot will be unusable but this isnt a complaint. I expected more to be this way. When i run out ill repurchase from here again.
the beads didnt glow when i first tested them but after letting them sit under a lamp for a few minutes i tried it again and it had a bright glow while in the dark. great quality beads
My students loved the color changing beads. We were discussing the sun and I had them make bracelets using the beads. We then walked outside to see them change colors and then into the dark to see them glow. They were fascinated.
Feature Product
- Changes color immediately when exposed to sunlight, even on cloudy and rainy days, The more UV ray, the darker it will be. When the light go out watch these beads glow.
- 7 Assorted Colors: Rose, Orange, Yellow, Fuchsia, Blue, Indigo, Violet. Please pay attention that the yellow color is quite similar to orange color, please distinguish them under strong sunshine.
- Size: 8mm in diameter, 6mm in high, 3mm hole in the middle; Quantity: approximately 1000 pieces.
- Fun for jewelry making, and great for teaching UV awareness!
- NOTE: They need to be put under the ultraviolet first until they turn into different colors; Then they will glow in the dark. The stronger the ultroviolet, the brighter they will glow in the dark. If they don't put under the ultraviolet first, they will not glow in the dark.
Description
Not only applicable to a variety of artifacts, unique gifts, also applies to all kinds of teaching, party game activities, and parents and teachers can cultivate the children's perception of colors and letters.
Watch white beads change to colored when taken outside the building! When returned they turn back to white. What causes the change? Humidity? Temperature? Fresh air? Birds flying overhead? The beads contain pigments which react with ultraviolet light from the sun, even on a cloudy day. Great for teaching UV awareness! Use the beads to test the UV blocking effectiveness of sunblock, sunglasses, windows, etc. Lesson activities are included.
Packaging quantity:
1000(Please Note: The colors are packaged randomly but we will try to make the quantity of each color even. )
UV Beads have assorted translucent colors :
Rose, Orange, Yellow, Fuchsia, Blue, Indigo, Violet.
The material of products
Miraclekoo UV Beads are extremely sensitive to natural light and change color dramatically from white to various colors when exposed to sunlight or even on an overcast day. Containing trace amounts of a photochromic pigment that are sensitive to the ultraviolet component of daylight, the beads have many different uses ranging from scientific testing of (ultraviolet) sun block materials to the creation of 'smart' jewellery.They need to be put under the ultraviolet first until they turn into different colors. Then they will glow in the dark. The stronger the ultroviolet, the brighter they will glow in the dark. If they don't put under the ultraviolet first, they will not glow in the dark.
My daughter bought these as a gift for her friend and it was a hit. They really do start all matching white, then turn different shades of purple and blue in the sunlight, then all turn glow-in-the-dark green when you get them in the dark. Pretty fun!
Great purchase
Love them.
Just what I needed for my class
Used for a density demo in class. Students were fascinated. They were a HIT!!!
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