2Aquarium Submersible UV Light Sterilizer Pond Fish Tank Germicidal Clean Lamp Features: 1. High quality filament for high performance and energy-saving. 2. Adopt explosion proof quartz glass tube for high transmission of ultraviolet ray. 3. Powerful suction cups for adjusting position freely. 4. Safe water-proof design for totally submersible use. 5. Independent power switch is great for safer use. 6. Suitable for controlling malignant in aquarium and fish tank. Specifications: Wattage: 5W/7W/9W/11W/13W(Optional) Plug Type: US Voltage: US: AC110-120V Body Material: Quartz Glass Cable Length: Approx. 145cm/57inch Size(D*L): 5W/7W: 19mm x 185mm/0.74inch x 7.28inch 9W: 19mm x 220mm/0.8inch x 8.66inch 11W/13W: 19mm x 240mm/0.8inch x 9.45inch Notice: 1. The sterilizer should be placed in filter tank, can't put it in the fish tank directly. 2. The product is for submersible use. 3. In use process, please cut off the power supply and stop using immediately if the lamp enters water. 4. The ultraviolet radiation will cause direct harm to human skin and eyes, please don't expose to use. Usage Suggestion: 1. Please choose the suitable lamp according to the size of your fish tank and filter-tank. 2. 3-4 times for a week, do not use it exceeds 2 hours per day; please according to the actual situation. Package including 1 x Aquarium UV Sterilizer Lamp 2 x Suction Cups 【Exceptional Performance】Engineered for high efficiency and effectiveness, this product delivers outstanding results every time. Its advanced features ensure consistent performance, making it a reliable choice for your needs 【User-Friendly Design】Ergonomically designed for ease of use, this product offers intuitive controls and a comfortable grip, making it perfect for both beginners and experienced users. 【Versatile Functionality】This product is multifunctional and can be used for a variety of tasks, providing you with the flexibility and convenience needed to handle multiple uses with a single tool.