Product details:

The Smart Solar Portsmouth Solar Bird Bath is still available as a regular solar-powered bird bath, but now you have the option of enhancing it with Solar-on-Demand power! Made with a special mixture of concrete and resin allowing for the stability of concrete without the excessive weight. Dimensions: 18L x 18W x 25H inches. Product weight: 20 lbs. This bird bath fountain offers "Solar On Demand," meaning you can choose whether or not you desire this feature. Both options are solar operated, but the Solar On Demand feature attached to the inner workings gives you the ability to control the solar operation. You asked for it, and we delivered!