This water feature is 100% environmentally-friendly and powered entirely by solar energy making it completely eco-friendly. It has a solar on-demand back-up battery power source for running the water feature during the night and when it is cloudy. Gorgeously unique solar water feature, cracked ball effect will fit perfectly into any garden. This elegant light-up feature is rare to be found on the market. The external solar panel itself has a built-in back-up lithium battery that charges from direct sunlight so you can run in the evening. Plus, this water feature is made from a highly durable weatherproof resin, making it perfect for all-year use. Perfect for any garden area, including the patio, decking, and balcony. LED light that works at night. Features: Comes with an LED light that comes on at night to give you a charming illumination Made from a durable & weatherproof resin for a realistic effect DC-powered water pump Back-up lithium battery Specifications: Dimensions: H:31.0 x W:43.0 x D:40.0 cm Colour: Black Guarantee:12 Months Net weight: 3.5kg Material: Polyresin 80%fiberglass 20% Model Number: GW277 Self Assembly Required: Yes. A beautiful & rustic solar water feature. This water feature features a hollow rock with a polished finish on the outside and a rocky texture on the inside, which makes up the basin. This water feature is 100% eco-friendly and runs entirely on solar energy. It has a solar on-demand back-up battery power source for giving you the option of running the feature when it's cloudy or dark. Comes with an LED light that comes on at night to give you a charming illumination. Solar on demand: A 2W solar panel with built-in back-up battery. The battery is used for running the feature at night or on cloudy days.