Product Review

Have to know:

1. Place them in flat surface walkway/driveway and stack more together for a long-lasting glow, as they interact with each other between absorption and emission of light.
2. For use in fish tank, potted plant or flower bed, make sure these rocks fully exposed to sunlight or spotlight or they may just performance not good enough. In daytime, these beautiful rocks also looks awesome.
3. They can't glow the whole night in the dark without any supplementary light . They may last approx for 2-3 hrs when sufficiently exposed under sunlight and it's up to the whether and the quantities of these rocks.
4. Some glowing rocks images are taken right after exposed to strong spot light so that they look every bright and they are, but the glow can not last for a long time. And the brightness will not be as a solar lamp.