From red and gold to blue and green, these solar spheres cycle through a seven-color fade night after night. On a 6 to 8 hour charge, the show will last 12 hours or more. Seven-color fade will last 12 hours or longer on a full sunlight charge Group them to create your own "Aurora Borealis" Place solar panel in direct sunlight Made of glass, steel and acrylic 3-1/2" diameter x 32" H installed Monocrystalline solar panel charges a single NiCad battery Solar panel and battery pack built into steel stake Needs 6-8 hours direct sunlight to fully charge Fully waterproof and weatherproof Easy assembly