The S330RL Sterilight replacement UV lamp is a direct replacement lamp for compatible UV water disinfection systems. UV lamps are a routine maintenance item because UV output declines over time, even if the lamp still turns on. Replacing the lamp on schedule helps maintain consistent disinfection performance and reduces the risk of unexpected alarms or downtime. The most important step is matching the exact lamp part number and confirming it fits your UV system model. S330RL Sterilight Replacement UV Lamp Compatibility first: confirm fit before you buy Before ordering: Match the printed lamp part number on your current lamp to S330RL or match your UV system documentation to S330RL. Confirm the UV system model that this lamp is designed to fit. Confirm lamp length and connection style match your current lamp. Do not substitute a different lamp that looks similar. UV lamps are model-specific. Length: 13″ (33cm) Warranty: 1 Year All Sterilight UV systems include an ultraviolet lamp surrounded by a quartz sleeve. The UV light output from the UV lamp decreases over time, requiring replacement. Viqua Replacement Lamp for these systems: Sterilight Model S2Q-PA Sterilight Model S2Q-PA/2 Sterilight Model SSM-17 Sterilight Model SSM-17/2 Sterilight Model S2Q Sterilight Model S2Q/2 Sterilight Model S2Q-GOLD Sterilight Model S2Q-GOLD/2 Sterilight Model SC4 Sterilight Model SC4/2 Sterilight Model VT4 Hydrosafe HSUV-SS-2-1 (made by Sterilight) Replacement schedule Many homeowners replace UV lamps about once per year to maintain UV output. Replace sooner if: The system indicates a lamp alarm or warning The lamp fails to start or stay on You are already servicing the quartz sleeve and want to reduce repeat service downtime How to Replace a UV lamp Sterilight S330RL UV Sterilizer Lamp/Quartz Sleeve Replacement Instructions This is a high-level overview. Follow the service instructions for your UV system model. Turn off the power to the UV system and allow the chamber to cool. Shut off water if your model requires it for safe service access. Open the controller area and disconnect the lamp connector. Remove the existing lamp carefully and avoid touching the glass with your bare hands. Inspect the quartz sleeve and clean or replace it if needed. Insert the new S330RL lamp and reconnect the connector securely. Restore power and confirm the lamp starts and the system returns to normal status. Verify alarms clear and the system remains stable. Best practice: service the sleeve and seals When servicing a UV system, many people: Replace the UV lamp Inspect and clean the quartz sleeve Replace O-rings if they show flattening, cracks, or signs of leakage This supports reliable operation and helps prevent repeat service calls. Common Questions on the S330RL Sterilight Replacement UV Lamp Q: How do I confirm that the S330RL Sterilight UV lamp is the correct replacement? A: Match the part number on your current lamp or match your UV system documentation and model compatibility to S330RL. Q: My UV lamp still lights. Do I still need to replace it? A: Often yes. UV output declines over time, which is why routine replacement is common. Q: How often should I replace a Sterilight UV lamp? A: Many homeowners replace UV lamps about once per year to maintain output and performance. Q: Should I replace the quartz sleeve, too? A: Not always, but you should inspect and clean it during lamp changes. Replace it if it is cloudy, etched, cracked, or cannot be cleaned effectively. Q: What happens if I use the wrong UV lamp? A: Performance can drop, alarms may occur, and the lamp may not fit or function correctly. Q: Can I install this lamp myself? A: Many homeowners can if they follow safe handling steps and shut off power before service. A technician is a good option if you are unsure. Q: Will a new lamp fix a UV alarm? A: It can if an aging or failed lamp causes the alarm. If alarms continue, check connections, sleeve condition, and the ballast or controller. Match your UV system model and replace it with the S330RL Sterilight UV lamp to maintain consistent disinfection performance and avoid unexpected downtime. Watch this ultraviolet sterilization lamps video to learn more about the role of a UV lamp in a ultraviolet sterilizer system. We sell a variety of replacement ultraviolet sterilization lamps.
