CALOVER Ocean Decor Electric Jellyfish Tank Aquarium Night Light with Color Changing Light Effects Home Decorations for Living Room Jellyfish Aquarium mood night light: This desktop tank holds 3 jellyfish which "swim" around the tank it can be powered by battery & AC 110V,Auto-Shutoff 4 hours later. LED inside, you can change the colors by press the key, when it is on. it can be a decoration that to add color for your room or office. Mood lighting for relaxation: This jellyfish lamp can create the perfect soothing ambience, Realistic Tranquil Motion. It can help you relax, provide comfort, energize you or help you concentrate, this is a great way to relax and unwind after a long day. Home decor: Dimensions: Height 22cm, width 18cm (1-2cm manual measurement error) Great for Home or Office Novelty gifts: Gift for kids, dad, mom, wife, husband,teens. Great gift for anyone who loves sea life or who would like to release the pressure 45 DAYS MONEY BACK FOR COMPLETE PEACE OF MIND  Every product has been tested to ensure the best quality before leaving factory. Any problems while using, please contact us at email. CALOVER offer 45 days money back.