Solar powered float lamp automatic sensor is activated at dusk. Can swim on the water and hang on the tree. It is exposed to the sun during the day (charging) and lights automatically at night 6 hours of charging in the sun 6 to 8 hours of light; Manufacturered by Anyren. On / off switch placed on the bottom of the floating lamp energy saving and environmentally friendly. Perfect fit for garden yard park tree swimming on pond lake swimming pool aquarium and others outdoors Ultra-bright 7 colors change automatically and create a unique lighting experience in your garden.