The Multi functional Lights are the best decoration for parties, weddings and festivals like Christmas Day, Halloween and Valentine's Day. Suitable for places indoors and outdoors, such as living rooms, bedrooms, gardens, staircases, corridors and hallways to create a happy and romantic vibe. Besides, they are widely applied to Christmas decorative string lights, artwork decorative string lights, garment decorative string lights, electronic toy decorative string lights and some other decorative string lights in all fields. WE HIGHLY RECOMMENED TO USED ALKALINE BATTERIES.