Feature: 1. Scope of Application: This aquarium diving UV lamp can be widely used in fish tanks, water tanks, rockeries, pet cages, etc. 2. Maintain Water Quality: Continuous use of this fish tank UV germicidal lamp every day can maintain good water quality. 3. Safety and Health: This aquarium fish tank germicidal lamp can kill algae and reduce the incidence of fish. 4. Firm Suction Cup: Our fish tank germicidal lamp is equipped with two powerful suction cups, which are firm and reliable. 5. Simple to Use : Choose the appropriate lamp according to the size of the cylinder and the length of the filter tank, and it can be used when it is powered on. Specification: Item Type: Aquarium Clean Light Material: Quartz Glass. Package List: 1 x Sterilization Lamp2 x Suction Cup Note: The germicidal lamp can only be used in the filter tank, not directly in the fish tank, otherwise the fish will be injured or killed due to long‑term ultraviolet radiation. The ultraviolet lamp radiation emitted by this product is harmful to health, especially for unprotected eyes and skin. Do not use it in direct exposure situations.