Product Feature Glowing small stones: These stones can't glow by themself. But these pebbles absorb enough sunlight during the day to glow up to 5-6 hours at night or any other dark environment. Please radiate them with light again if they are not bright enough. Luminous stone luminescence principle: The luminous principle of our luminous stone is the process of absorbing light energy, storing light energy and releasing light energy, which can be reused repeatedly. Service life: 5 years. The premise of luminescence: After you receive the express, take out the luminous stone and place it in a place with a light source to facilitate the absorption and storage of light energy, preferably in a place with natural light, and the best effect is in a place with sunlight, because the luminous stone absorbs the natural light Ultraviolet rays are the fastest and the most, and the most stored energy. One of the methods to test the luminous effect: open the package and take a few small stones to an outdoor place with natural light for ten seconds, then immediately take it to a dark place to check the luminous effect. Stones of different colors have different luminous effects. Luminous time: about 5-6 hours. The light is brighter in the first hour. As the light energy is gradually released, the luminous effect will gradually weaken until it becomes dark. After that, the light absorption operation needs to be repeated. Application scenarios: gardens, gardens, flower trays, balconies, children's toys, etc. The emitted fluorescence plays a role of beautifying the scene with decoration and embellishment. Decoration: It is used for road landscaping of garden villas, fish tank and aquarium decoration, wedding decoration, luminous character production, counter decoration, etc. Note Usage: Lighting the pathway, driveway,flower bed, potted plants, or fish tanks. This is the best DIY decoration for vases, fish tanks, aquarium, crafts, swimming pool. Ideal for your garden, patio, lawn, yard. Friendly reminder: Our luminous stone is a decorative product, which cannot play a role in lighting. It cannot achieve the expected effect in a place with light or light source interference. The more dark the environment, the better the effect! Product Specification Type Highlight Luminous Ice Cubes Material Plastics and Resins Quantity 300pcs Size 14 x 11mm Color Lake blue/Green Blue/Mixed Color Service life5 years ApplicationGardens, gardens, flower trays, balconies, children's toys, etc. Suitable forDIY decoration for vases, fish tanks, aquarium, crafts, swimming pool Package Included 300 PCS Highlight Luminous Ice Cubes(Lake blue/Green Blue/Mixed Color)