How It Works ?
The glow in the dark stones will absorbs and stores sunlight or other light source, then they give off light in the darkness, with several hours of bright glow and then gradually dim away. The process will repeat for many years.
Product instructions:
1. Open the product packaging bag, spread the stones out flat while they charge, for maximum exposure to the light source.
2. Use a strong light source for charging ? outside in direct sun or inside under a bright light for at least 1 hours.
3. The stone glows when fully charged, with the brightest glow lasting about 1 hours. The light then gradually dimmed until it disappeared after 6 hours.
4. Please radiate them with strong light again if they are not bright enough. The process will repeat for many years.