PRODUCT SPECIFICATION: US plug, 15* 5050SMD LED lights beads, approx 11inches/28cm aquarium lighting bar. EASY to USE and CLEAN: 2 suction cups use to attach the fish tank light bar to the aquarium directly, so you can easily put the aquarium light bar anywhere you love . On/off switch design, so you do not need to plug out the adapter every time. Acrylic outer tube is very easy to clean. IP68 WATERPROOF RATE: This LED fish tank light uses acrylic outer tube and plastic protection caps to protect light beads and aluminum substrate, so it can put into/out of water, but the power adapter with switch is not submersible! SAFETY and GOOD QUALITY: DC12V output voltage, so it is harmless for you and your fish. The fish tank LED lights uses explosion protection acrylic outer tube, so fish cannot bite the light. CUSTOMER SERVICE: 180 days guarantee. If any problems happen during this period, please contact us for help, we will help to solve ASAP.