These LED glass ornaments are 3.5" in Diameter. The light inside flickers like a real flame. Each has an on/off switch with a 5-hour timer, that will turn the ornament off after 5 hours, and then turn it on in 19 hours. They can be powered with a Luxury Lite Remote Control (Sold Separately). The CR2450 Lithium Battery is included. Choose from the Holly covered ball or the Merry Christmas ball.