This product has ultraviolet sterilization function, which can keep the aquarium clean, efficient and beautiful. functionality: High quality filament with high performance and energy savings. Explosion-proof UV tube is used, with high ultraviolet transmittance. The position of the powerful suction cup can be adjusted freely. Waterproof design for drinking water, can be used completely submerged in water. The independent switch is ideal for safe use. It is suitable for controlling malignant bacteria in aquariums and aquariums. Features: Power: 13W Voltage: EU: 220-240V Body material: UV Product size (depth * length): 19 * 245mm Product weight: 189g Package size (length * width * height) 29.5 * 8 * 4cm Notes: 1. The sterilizer should be placed in the filter tank, not directly in the aquarium. 2. During use, if water gets into the lamp, immediately turn off the power and stop using it. 3. Ultraviolet rays can cause direct damage to human skin and eyes, please do not expose it for use. Suggested use: Please choose the right light according to the size of your aquarium and water tank filter. 3 to 4 times per week, do not use more than 2 hours per day; please follow the actual situation. About Shipping: All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.Any questions, please feel free to contact us During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shopping Thanks for your cooperation and well make you feel satisfied.