Move the Violet light across the Write and See Square and observe the brightly glowing trail. Violet light has enough energy to excite the phosphorescent pigment in the vinyl. The excited pigment then slowly releases energy as green light (the "glow" look). Red Light does not have enough energy to affect the pigment. Contains a mounted sheet of phosphorescent vinyl ~15 x 15 cm (6" x 6") and an incredible Violet Photon Light LED flashlight on a key-chain ring. Kindergarten through college, teach handwriting skills, or Albert Einstein's Photoelectric effect!!!
Write & See Squares
SKU: TCH-SS-910
Unit Price
Quantity
Subtotal
US$ 24.16
US$ 24.16
US$ 24.021%
2
US$ 23.931%
3
Description
Shipping from
This product is shipped from our supplier's warehouse in CT, United States
Our guarantee
This product is brand new and includes the manufacturer's warranty, so you can buy with confidence.
A 25% handling charge is levied against all authorized returns except those due to our error. Unauthorized returns are subject to a 40% handling charge. Damages & defects must be reported to us within 14 days.
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