It's also environmentally friendly since it utilises solar energy to power the pump, which constantly re-circulates water from the main bowl reservoir. Follow the simple installation instructions, ensuring the solar panel is in direct sunlight, and then sit back and enjoy your beautiful cascading water fountain. In order for the solar panel to receive a full charge, the switch underneath the panel must be placed in the Off position, then switched on to activate the pump and the water flow. Choice of 2 fountain heads. Easy Install, no mains wiring.