Viqua S410RL-HO High-Output Replacement UV Lamp for VH410 Series — 1-Year OEM UV Bulb

The Viqua S410RL-HO is the genuine high-output Sterilight replacement UV lamp designed to restore optimal disinfection performance in VH410-series water treatment systems.

If your VH410, VH410M, SC-410, SCM-410, SPV-410, SP410-HO, SPV-8 or PUV-14 unit has been in service for a year or more, swapping in a new S410RL-HO lamp brings the UV intensity back to factory specification. This lamp is a direct OEM part from Viqua and ships double-boxed with protective bubble wrap to prevent shipping damage. Using an authentic replacement helps maintain system reliability and supports the expected lifetime of your UV system.

How does this lamp maintain my system’s performance?

The S410RL-HO lamp delivers the high-output ultraviolet energy the VH410-series units require to inactivate microorganisms in the water path. Over time lamp output declines, so replacing it annually keeps your system operating within design parameters. Installing a genuine lamp helps ensure consistent intensity and longer-term stability compared with non‑OEM substitutes.

• Restores UV output to manufacturer standards for reliable operation
• High-output mercury vapor design for compact, powerful performance
• Recommended annual replacement to sustain treatment effectiveness

Which systems are compatible with this replacement bulb?

This S410RL-HO lamp is built specifically for several Viqua/Sterilight models so it fits and functions properly without modification. Confirm compatibility with your unit model before ordering to guarantee correct electrical and physical fit. Models include common VH410 and SP-series systems used in residential and light commercial applications.

• Compatible models: VH410, VH410M, SC-410, SCM-410, SPV-410, SP410-HO, SPV-8, PUV-14
• OEM design ensures correct lamp length and connector alignment
• Works with standard VH410 system lamp holders and sleeves

What safety and maintenance guidance should I follow?

Ultraviolet lamps emit harmful radiation when energized, so always power down and follow Viqua’s safety steps before handling. Replace the lamp on schedule and inspect the quartz sleeve and o-rings during service for optimal light transmission. Dispose of used mercury-containing lamps according to local regulations.

• Never look directly at an energized UV lamp—harmful to eyes and skin
• Power off system and allow lamp to cool before replacing
• Check and clean or replace quartz sleeve and seals during lamp change

How long will the lamp last and why should I choose an OEM part?

Viqua high-output lamps are rated for roughly one year of service before UV intensity diminishes below recommended levels. Choosing a genuine Viqua lamp avoids fitment issues and ensures the original performance characteristics of your UV unit. OEM parts also simplify warranty and service support when needed.

• Typical rated life: about 12 months under normal operation
• OEM quality ensures consistent UV intensity and correct dimensions
• Double-boxed, bubble-wrapped packaging protects the lamp during shipping

Who is this for: The Viqua S410RL-HO replacement lamp is intended for homeowners, property managers, and service technicians who own or maintain VH410-series and compatible Viqua/Sterilight UV systems. If you want to sustain your system’s designed disinfection performance, prevent premature system wear, and use a verified OEM component for safe, correct replacement, this lamp is the appropriate choice.