Aquarium UV Sterilizer Lamp, Submersible Water Purifier Lamp for Pond and Fish Pond - Inhibits harmful bacteria in the water. - Prevents growth and proliferation of algae. - Reduces the incidence of fish parasites. - Keeps the water clear. - A separate switch is ideal for safer use. - Through ultraviolet radiation, microbial DNA is destroyed, its reproductive ability is lost, and most bacteria and algae in the water are killed, restoring healthy moisture. - Made of high-quality materials for durability. - The tail part is made of insulating material, which is waterproof and safer. Multiple seals are available for diving. - The scope of application is not only fish ponds, but also rockeries, fountains, fish farming, and aquaculture. PS: 1. This product can emit effective ultraviolet rays. Ultraviolet rays have a certain harm to the human body. Do not look at it with the eye. Direct exposure can damage the eyes and skin. Direct exposure to living creatures is prohibited. 2. It is recommended to turn on the lights for about 2 hours each time. It is forbidden to turn on the lights continuously for more than 6 hours. 3. The disinfection lamp can only be used for the filter tank. It cannot be used directly in the fish pond, otherwise the fish will be injured or killed due to prolonged ultraviolet radiation. Product specifications: - Power: 5W / 7W / 9W (optional) - Plug type: US standard - Voltage: 220V - Body material: quartz glass - Lamp length: 18 cm (5W / 7W), 22 cm (9W), - Cable length: approx. 143 cm - Suitable for fish pond size: 60 cm (5W), 80 cm (7W), 100 cm (9W), Package contents: - 1 x aquarium diving UV lamp Notes: - Due to differences between different monitors, the picture may not reflect the actual color of the product. - If there is a problem with the product, please leave a message before giving incorrect feedback. - Allow 1-3 mm error due to manual measurement.