UV Colour Changing Detection Beads, 250 Pack, Photochromic Classroom Experiments

$20.00(Ex GST)

• Photochromic UV detection beads change colour under UV-A light, used for sun safety investigations
• Pack includes 250 beads, bead height 6 mm, diameter 8 mm, inner diameter listed as 3.5
• Demonstrates sunscreen or sunglasses effectiveness by comparing colour change intensity under the same exposure
• Activation guidance states UV-A 300–360 nm, long-wave black light around 365 nm is sufficient
• Choking hazard, not for children under 3, freezer tip if colour change stops, supervised use only

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SKU: LC-80-HL0015-02 Category:

Description

UV detection beads designed to change colour when exposed to UV light for enquiry based classroom experiments on UV exposure and protection. Intended for checking effectiveness of sunscreen or sunglasses and tracking exposure in controlled activities. Activation guidance states UV-A light ideally 300–360 nm, with long-wave black light typically around 365 nm sufficient. Pack contains 250 beads with stated dimensions. Warning: choking hazard, not suitable for children under 3 years.

UV Colour Changing Beads, 250 pcs Bag, Height 6 mm, Diameter 8 mm, Inner Diameter Listed 3.5

UV detection beads that change colour when exposed to UV light for demonstrating UV ray effects and comparing sunscreen or sunglasses effectiveness. Activation guidance states UV-A light ideally 300–360 nm, long-wave black light typically around 365 nm is sufficient. Pack is 250 pieces per bag. Dimensions listed are height 6 mm, diameter 8 mm, inner diameter listed as 3.5. Troubleshooting hint provided: if beads stop changing colour, place in freezer. Warning: choking hazard, not suitable for children under 3 years. Our products are for use in a laboratory or educational settings only, use under appropriate supervision.

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