The 10-GLUV cap light is designed to replace the rubber moisture Seal that comes on the neck of your illuminarie, translucent, or opaque gazing Globe. The 10-GLUV transforms your standard gazing Globe into a lighting spectacular! the mated solar panel charges the U.V. And white LEDs by day and automatically turns either of them on in the evening. You have the option to use the white LED or the U.V. Led which transitions highlights the glow-in-the darks green swirl found in our illuminarie gazing globes, it creates an awesome lighting display.