Need to replace your UV lamp? This LSE Lighting T5 UV bulb is exactly what you're looking for! It's a 17-watt UV lamp that emits light at 254nm wavelength, which is perfect for sterilization and purification systems. The bulb measures approximately 14 inches long (357mm) and features a 4-pin base with a special collar on one end - make sure this matches your existing fixture before ordering. It operates at 425mA and is fully compatible with system numbers 09980, 09981, and TT-UVB14 systems. Manufactured in an EPA Registered Establishment, so you know it meets quality standards. When installing, remember to use proper safety gear since you're dealing with UV light. These replacement bulbs are essential for maintaining the effectiveness of your UV sterilization system, whether it's for water purification, air purification, or other applications. The T5 design is energy efficient while providing the necessary UV output to eliminate bacteria and viruses. Just make sure to replace your UV lamps regularly according to manufacturer recommendations to ensure optimal performance. If your current UV system isn't working as well as it used to, chances are the bulb needs replacing, and this LSE Lighting option provides reliable performance that matches or exceeds original equipment specifications. Always handle with care and follow proper installation procedures for best results and safety.