Item Name: Colour Changing Aquarium Bedside LED Jellyfish Tank Mood Lava Light Night Light. DescriptionChill out and watch your very own Jellies bob around inside the soothing light of the Jellyfish Lamp.Type: Desk Lamp Indoor decor with an deep sea feel.Style: Novelty100%branded new and high quality.Material: Plastic SIze:23cm (H) x 7.6cm (W) x 7.6cm (D)Perfect for living rooms, bedrooms or rec rooms.Multi-coloured LEDs create a comforting, ambient light.Instructions for use:1. Take out the product and open the water tank cover, add water to the water tank and fill it up without overflowing.2. Put red and white volcanic beads on the top of the product and the water tank cover3. Take out the battery cover and insert 3 AA batteries4. Press the "power switch" ON/OFF button on the back of the product to turn the power on/off5. Press the "product switch" on the front of the product again, the light is on, and the volcanic beads appear repeatedly6. The product can use a transformer (output DC4.5V, 500mA transformer, the transformer is not delivered, you need to buy it yourself)Cleaning and Maintenance1. When not in use for a long time: Please cut off the power: take out the battery or unplug the external power plug. After drying and drying, put it in the original box.2. Cleaning: Before cleaning, be sure to cut off the power supply. When cleaning, just wipe the soft cloth. Do not wash the entire product in water!Package Included:1 x Jellyfish Light