LED Christmas Window Christmas Candle with Sensor, Antique Finish, Cordless Battery-operated LED window candle with windowsill mounting clip Automatic light sensor turns candle on at dusk and off at dawn; continuous and flickering light options LED light does not generate heat and never needs replacing Lasts 45 days running 12 hours per day on 2 C batteries (not included) Measures 6-1/4 inches wide by 1-1/2 inches deep by 9 inches tall; 2-year limited warranty