Tektrum Sun Jar Color Changing Solar Light In Mason Jar (Set of 4) Sun jar solar light with built-in solar panel, bright color changing LED; The light is diffused by the frosted jar and gives the appearance of a natural and warm light. Lighting pattern changes automatically among the beautiful diffused Red/Green/Blue/Purple lights; Built-in rechargeable battery The sun charges the battery during daytime, which powers the light after dark; LED can last up to 100,000 Hrs; Dimension 4.5in H x 3.5in W; Waterproof No need of electricity and installation; Automatically turns on the light at night for your garden or walkway for up to 8 hours