The RL-210HO is a genuine Luminor replacement UV lamp and lamp key for LUMINOR BLACKCOMB-HO LBH4-051, LBH5-051, and LBH6-051 High Output UV water treatment systems, and their NSF Class A/B variants listed below. It is an authentic Luminor part, not a compatible aftermarket substitute, so it drops in and treats water the way your system was originally tested and certified to perform.
The lamp is rated for 10,000 hours of use, about 12 months of continuous operation. UV-C output weakens gradually over the lamp's life, so Luminor recommends replacing it every 12 months or after 10,000 hours, whichever comes first, to keep UV output where the system needs it.
Why a genuine Luminor lamp matters
Luminor tests and certifies its UV systems as a complete unit: lamp, chamber, and sleeve together. An authentic RL-210HO keeps your system performing the way it was certified. A non-Luminor lamp voids the system's NSF/ANSI 55 certification and can affect your warranty coverage if a problem comes up later.
What makes it "HO" (High Output)
BLACKCOMB-HO systems use a low-pressure, high-output (LP-HO) coated UV lamp built to hold its dose consistently across the full 10,000-hour rated life, rather than tapering off the way a standard lamp can. Luminor classifies the BLACKCOMB-HO 4.1 line as "Residential Crossover," meaning it's built for large custom homes, lodges, and light commercial applications that need more disinfection capacity than a standard BLACKCOMB system, without changing the minimum water-quality requirements: BLACKCOMB-HO systems still require a UV transmittance (UVT) of at least 75%, or 50% on low-UVT-rated models.
LBH6-051A (NSF Class A, monitored, includes UV sensor)
The A and B suffixes mark the system's NSF/ANSI 55 monitoring class (A is monitored with a UV sensor, B is non-monitored), not a different lamp. All six models above share the same "-051" High Output rating and use the RL-210HO.
Complete your replacement The RL-210HO is the lamp only. For the full replacement:
Luminor RQ-210 UV Quartz Sleeve, the same quartz sleeve used across both the standard RL-210 and the High Output RL-210HO lamp. Replace every 24 months, or sooner if it's visibly scaled, cloudy, or damaged.
This video demonstrates how to replace the UV lamp on your BLACKCOMB ultraviolet wawter disinfection system. ESP Water Products, an authorized Luminor UV dealer, offers genuine Luminor UV systems and replacement parts for reliable water purification.
How do I know if the RL-210HO is the right lamp for my system?
A:
Check the model number on your system's nameplate. The RL-210HO fits any Luminor BLACKCOMB-HO system ending in "-051": LBH4-051, LBH5-051, LBH6-051, LBH5-051B, LBH6-051B, and LBH6-051A. If your model doesn't have an "LBH" prefix, you have a standard-output BLACKCOMB system and need the RL-210 instead, not the RL-210HO.
Q:
What's the difference between a High Output (HO) system and a standard BLACKCOMB system?
A:
Both use LP-HO coated lamps that hold their UV dose steadily over their full rated life, and Luminor positions the BLACKCOMB-HO line as a "Residential Crossover" option for larger custom homes, lodges, and light commercial jobs that need more disinfection capacity than a standard system provides. Water quality requirements are the same either way: at least 75% UVT (or 50% for low-UVT-rated models).
Q:
What does a "Lamp Failure" alarm mean?
A:
It means the controller can't light the lamp. Unplug the system for at least 3 minutes, check that the lamp connector is fully seated, then plug it back in. If the alarm continues, replace the lamp. If a new lamp doesn't clear it, the controller itself may need service.
Q:
How do I reset the lamp timer after installing the RL-210HO?
A:
On a 4.1 controller (4-digit LED display), press and hold the front button until the display cycles through rSt3, rSt2, rSt1 and beeps. On a 5.1 controller (LCD display with lamp key), unplug the controller, remove the old lamp key, insert the new lamp's key, then plug it back in. Either way, the display should return to showing full lamp life remaining; if it doesn't, contact Luminor support.
Q:
Will a non-Luminor replacement lamp work in my BLACKCOMB-HO system?
A:
It may physically fit, but Luminor systems are NSF/ANSI 55 certified as a complete lamp-and-system unit. A non-Luminor lamp voids that certification and can affect your warranty if an issue comes up.
Luminor RL-210HO Replacement UV Lamp for LBH4-051, LBH5-051, LBH6-051