16" S-shape Motion Volcano Lava Lamp Night Light - Yellow Wax Blue Liquid The grooviest of the groovy, rocket-inspired accent lamp. Yellow textured lava wax in Blue Liquid External on/off switch for lamp. Specifications: Dimension: W: 2.5 H: 16 D: 2.5 Weight: 3lbs The traditional lava lamp, redesigned with a retro casing. Use as a night light or decoration for any space.