When you receive the parcel please kindly put all the pebbles in the sun for about half an hour to make them charge fully for the first time use, then you can watch in the dark, they will glow brightly. They will last the glowing for about 2 -3 hours in the fully dark space. They can charge and glow repeatedly.
If you want them to glow all the time in the dark indoor or outdoor please install a LED UV black light above them.
They can be used to decorate the garden flower pots, to mark paths or as a border for plant beds or ponds.
It can be applied to pool, bar, vase decors, fish tank and Aquarium;
It's EN71 approved: non-toxic, non-radioactive and completely harmless to aquatic life.
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