Description: Solar water coaster luminous Charging function: solar charging Material: imported high-quality acrylic Effect function: the water cup seat plays the role of luminous atmosphere Description of solar water cup light: 1. Long press the green label button on the back and do not let go, it will flash for about 3 seconds, indicating that it has been turned on. 2. Only in a dim place (at night), plus vibration (while driving), will it be luminous. 3. It will automatically go to sleep and turn off the light if it does not move for 20 seconds, and it will light up again when it moves again. 4. Long press the button for 4 seconds and the light will turn off. 5. After using for a period of time, the light does not turn on, it is out of power, it needs to be exposed to the sun to charge. 6. If the light is too strong during the day, it will not be bright, and it will only be bright at night or in a dim address. packing list: 1 * Solar Light Cup Mat hello, guys, thank you for visiting my store.if you want buy more than we listed, please