Multiple Application ScenariosThese swimming pool LED lights are suitable for various lighting scenarios and can be used in indoor or outdoor places. LED pool lights can be placed in Halloween pumpkins, lantern decorations, swimming pools, vases, weddings, aquariums, fish tanks, ponds, fountains, parties, hallways, graduations, holiday decorations, etc. Long LifespanOur underwater lights are made of high quality LED chips, which save more power than other lights. Just plug in 3 new AAA batteries (not included). One dive LED light 4 pack kit contains 4 LED lights