The 4" White Drip Pillar Candle features an on/off switch on the bottom, as well as a timer option that allows it to glow for 6 hours, and then turns off automatically for 18 hours. It has a cool glow with dripped details around the top for the appearance of melted wax. Measures 4" high by 3" wide and requires three AAA batteries (not included). - PoshaBella