Good Times 21-Pack Floating Star Luminary with Color Changing LED's for Both in and Out of Wate Perfect for Entertaining and is a safe alternative to candles in luminaries or large votive Can be used in displays for weddings, parties or any special events; Great on any flat surfaces Floating, waterproof feature allows for easy illumination of any pool, pond or other water applications Seamlessly scrolls through a rainbow of colors or can be set on one of four variations Automatic shut off after four hours conserves battery life