Xodus Innovations LLC LED Classic Christmas Window Candle with Suction Cup, Set of 2 Set of 2 battery-operated LED window candles with realistic flickering lights Built-in timers keep candles lit for 6 continual hours daily LED lights do not generate heat and never need replacing Each lasts approximately 240 days, or 40 days on automatic mode, using 2 AA batteries (not included) Includes bottom suction cups for secure placement