Solar Only Feature: Standard solar fountains do not store solar power; they operate only when the panel is placed in direct sunlight. The panel is connected to the pump via a cord but they do not have a battery pack. Without direct sunlight the fountain will no longer run until after the sun comes out again. This fountain will operate in good sunlight conditions when the panel has direct sun exposure and like all solar fountains the performance is based on the sunny conditions. This wall fountain can be hung from a wall or set on the floor of your deck patio or on a level ground against a wall. Color can vary slightly on each fountain. Lighting can be different indoors and out as well as differences in computer monitors. So slight color variation is not a cause for return.