This lovely remote controlled floating Lily will create the pleasant sound of trickling water at the touch of a button. As with all our solar powered products it has almost no operating costs. Most similar solar-powered water features will only function when the sun is directly on the panel. But our high-quality solar panel contains rechargeable batteries to store power for up to 5 hours continuous use, meaning the cascade will continue to work even when there's no sun. The fountain will achieve jet heights up to 50cm on an average summer's day. During winter performance will drop to approximately half this capacity on a sunny day. - Primrose Floating Lily Pad Solar Water Fountain with Lights Remote Control 36cm in Green