Pack of 2 LED Bethlehem star Christmas lights: LED Christmas decoration window, warm white light, powered by 3 AAA batteries (not included), more convenient to use, no power cable or plug required. They are durable and reusable. Thanks to the low energy consumption, you can enjoy the Christmas lights without worrying about high electricity bills.Timing function Christmas decoration window: with 3 modes: continuous light, flashing and off. In flashing and continuous light mode, it automatically switches to time mode to work 6 hours and stay closed for 18 hours. Repeated cycle Mode can be set directly via the switch to create different festive atmospheres. The warm white LED stars are like sparkling little stars and the stars on the window create a romantic atmosphere at dark night for youSuction cups + additional 2 adhesive hooks for hanging: LED Christmas star with suction cup hooks can be attached to smooth wooden or glass surfaces. Christmas window lighting, equipped with powerful nano adhesive hooks, no drilling holes or tightening screws required, window lights can be easily and firmly hung on any smooth surface such as windows, doors and walls for a long time. Details of the installation method can be found in the picture