This 9W replacement twin tube lamp bulb is perfect for compatible aquarium water clarifiers. It emits ultraviolet light to disinfect and sterilize the water, ensuring a healthy environment for your aquatic pets. The bulb features a 2-pin connector, 1F2 base connector, and a wattage of 9 W, making it easy to replace and install in your clarifier. Ideal for use in aquariums, this UV lamp bulb is designed to last and provide efficient performance.  Upgrade your clarifier with this high-quality lamp bulb today.