100/200 pieces of bright stones in the dark garden bright stones garden stones garden walkways luminous stones garden decoration Features:Diameter: 0.8-1.2 inches / 2-3 cm, made of high quality resin, non-toxic and odorless, without radioactive substances.Fluorescent bright effect Brightprinciple of body reaction, does not require energy or battery. Pebbles need enough sunlight to absorb ultraviolet light before they can glow in the dark.Packing list:10/50/100/200 Pieces * Colorful OR White OR Green OR Blue O Green light Garden light stonesOur multicolored pebbles that glow in black pebbles can be used to decorate roads, grass and gardens; they can be used to decorate potted plants and gardening; also to decorate fish tanks, and swimming pools; suitable for special occasions, parties, etc. The light of the black pebbles of darkness is the best decoration at night.Luminous stone Frequently Asked Questions: 1. Q: the luminous stones received will not shine. It's useless? A: Luminous Stone is a light storage product. The principle is to absorb the light source to emit it. Each time it emits light for 2-8 hours, the first 1-2 hours highlight the period and then continue to emit light. The product received was not illuminated because there was no source of absorption during the logistics process. You can turn it back on in the sun or under the light. 2. Q: Why didn't the sun that had burned during the day still shine at night? A: Because its principle is to emit light while absorbing light, it also begins to emit it during the light storage process. If you absorb the light during the day, but after sunset, after the period of night light, you can only see a slightly weaker light, but when the light is turned on and then illuminated, you can see that it is very bright. 3. Q: What color is brightest in the night light? A: The blue, orange and white colors are brighter. Important note: the effect of light products is not disposable and can be repeated for more than 15 years. If works with commemorative significance can be installed, they will have the same effect after 15 years.Due to the need to take pictures, the light effect is taken in a dark environment, and the darker the ambient light, the better.