The Burnt Ivory Drip Mini Pillar flickers and glows from within, and the wick glows at the tip. The apprearance of uneven burning and wax drips adds to its realistic look. The timer feature turns it on for 6 hours and off for 18 automatically. It comes with 2 AG-13 batteries (item # M84020). It is 1-3/4" tall with a diameter of 1-1/2" and will fit in most tealight holders. You will find a link to replacement batteries below as well as other styles of LED lighting.