These cordless candles automatically turn on when their integrated photo-sensors detect darkened conditions, and issue a golden glow from their integral LEDs without flame or dripping wax. Traditionally used as signal lights for sailors or welcome lights for travelers, their weighted 3"-diam. brass-plated bases easily fit on window sills indoors or outdoors and will not tip. Two AA batteries (required) provide enough power for the whole holiday season (up to 1,500 hours)--the LED provides over a decade of use. Set of two. 11 3/4" H x 3" W. (2 lbs.)