A jellyfish mood lamp is a decorative tabletop lamp designed to look like an aquarium with lit jellyfish floating inside. The lamp's LED lighting typically shifts from one color to another to create a relaxing and therapeutic effect.
Lights in a jellyfish mood lamp can typically be set to just stay on one color. The faux jellyfish float and move through the "tank" in a realistic manner. A black background enhances the effect. Because the lamp contains small, movable parts, it is not recommended for use by children under 10. Jellyfish mood lamps are available at several online retailers, such as Amazon and ThinkGeek.