Place the Magic Globe in sunlight through the day, so it can charge its replaceable, rechargeable batteries (included) with solar power. Sensing nightfall, it switches itself on and begins a fascinating succession of yellow, magenta, red, green, lilac, orange, blue, mint and purple. After a day in the summer sun, it can run for up to 12 hours. Three super bright LED diodes are fed with varying amounts of energy, creating the color changes. The plastic globe can be safely placed in the garden, or on an outdoor dining table-it even floats in water. Black plastic base has three holes for the fixing screws or 6" ground spikes that are included for you to use, if desired. 8" diameter.