Echo Valley Glow in the Dark Ocean Mist Gazing Globe - 10 Inches, Ocean Mist Blue Colorful, hand-blown glass globe with luminescent crystals embedded inside Crystals absorb light energy from sunlight or an interior light source such as flourescent, incandescent or ultraviolet light After charging with a light source, a soft glow will last up to 4 hours into the night Measures 10 inches in diameter and 11.5 inches tall Stand sold separately