Features: The UV sterilization lamp is made of high quality Quartz tube, rubber parts and strong sun cups. The UV light sterilizer can clean the aquarium water, eliminate bacteria, germs and algae, provide a healthy environment for fish. Wide applications: suitable for aquarium, fish tank, swimming pool, ponds, drinking water industry, biopharmaceutical industry, etc. It is submersible, please install and place it in the filter groove when you use 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 filter tank. 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. Notes and notices: 1. The sterilizer should be placed in the filter tank, can not put it into the fish tank directly. 2. The product is intended for submersible use. 3. In use, please turn off the power supply and stop using 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 your fish tank size 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