Features: The UV sterilization lamp is made of high quality Quartz tube, rubber parts and strong solar cups. UV light sterilizer can clean aquarium water, eliminate bacteria, germs and algae, provide a healthy environment for fish. Wide applications: suitable for aquarium, aquarium, swimming pool, ponds, drinking water industry, biopharmaceutical industry, etc. It is submersible, please install it and place it in the filter groove when using it. Do not expose the fish directly under UV light for a long time. The sterilization lamp can only be placed in the filter tank, cannot be used directly in the aquarium, otherwise the fish will be injured or killed due to long exposure to ultraviolet rays! Specification: Material: plastic + Quartz glass color: black power: 5W&nbsp ; Cable Length: Power Supply: EU Plug. Notice: 1. The sterilizer should be placed in the filter tank, cannot put it into the aquarium directly. 2. The product is intended for submersible use. 3. During use, please turn off the power supply and stop use immediately if the lamp enters water. 4. Ultraviolet radiation will cause direct damage to human skin and eyes, please do not expose to use. Suggestion for use: Please choose a suitable lamp according to the size of your aquarium and filter-tank.3-4 times a week, do not use it more than 2 hours a day ; Please according to the actual situation. Package includes: 1 * Aquarium UV sterilization lamp 2 * Suction cups Sold by the grid cool store