AomeTech Multi Color Remote Controlled Submersible Underwater LED Lights for Aquarium, Pond, Wedding, Halloween, Christmas, Party, Events (4 Pieces) 4 LED lights, 4 remote control Controller can be used between 8 to 10 meters Replaceable 3AAA batteries (sold separately) Multi color choices, and brightness choices, all can be done by a remote controller Can float or sink, depending on an inner weight taken out or left inside.