This Jellyfish Lamp is a calming addition to any space. It features two novelty jellyfish floating in water to creating a mesmerising visual display. This lamp allows you to set the mood with its colour-changing LEDs, and a variety of lighting modes including flash, strobe, fade and smooth.The Jellyfish Lamp can be powered by batteries or USB with the included cable. Perfect for adding a touch of magic to your bedroom, office or living space.Top Tips!Ensure you add 2 drops of washing detergent to the water in the tube to help the Jelly Fish float.If one of your Jelly Fish floats at the top and stops swirling around the tube. Switch off the lamp and submerge the Jelly Fish into the water again using the mixing spoon.