Solar vs On Demand
If you live in Phoenix or Yuma, a solar bird bath will suit your yard just fine. If you live in less sunny locales, however, you might want to upgrade to a solar-on-demand bird bath. This type of bird bath boasts the ability to actually store solar energy so that it can run at night or during cloudy weather. Excess power is stored in the battery to keep the fountain operating when the sun sets – or when you decide it should be on. In direct sunlight, the battery can charge in one day, and a full battery will function for up to six hours at night.