Xodus Innovations LLC LED Tapered Christmas Window Candle Ivory With Built-In Timer Two Pack Versatile decorative item: use for table accent lighting or as holiday window candles Each candle operates for up to 300 hours Can function for up to 50 days if left on automatic mode The included window suction cup holders allow your candles to be used as holiday window enhancements Requires 3 "AA" batteries (not included)