Yellow & Blue Lava Lamp - 11.5 Inches Tall Gooey blobs of green wax "lava" change shape, separate, and procreate as they move about their blue liquid environs. The base and top of the lava lamp have an attractive silver-colored finish that won't distract the eye from what's really important, the aforementioned gooey blobs. Includes a 15-watt incandescent bulb. 11.5 in x 2.75 in.