15w solar parrot solar street lamps are perfect for pathway, small parking lots, entrance, backyard. Unique model adjustable solar panel on direction to sun. 5v/30w policristalliene solar panel ,3v/25Ah lithium po4 batteries long life spand. Height installation suggested 5meters . Doesn't include base, this lamp can be installed on a 2 1/4 inch horizontal metal Pole. Waterproof /dust proof on & off automatic light sensor technology. Back up rainy days (3). Rest nights with rain set by battery control system.