Video Instructions Were Excellent!
"We trust the replacement light is operating properly, but I must say the online videos about how to replace the UV bulb and sleeve were excellent!"
Luminor RL-420HO Replacement UV Lamp for LBH4-151, LBH5-151, LBH6-151
Q&As
Luminor RL-420HO Replacement UV Lamp for LBH4-151, LBH5-151, LBH6-151
Q&As
Part Number:
RL-420HO
High output UV lamp with reset key restores strong UV output for LBH4 151 and LBH5 151 crossover systems.
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Description
The RL-420HO is a genuine Luminor replacement UV lamp and lamp key for LUMINOR BLACKCOMB-HO LBH4-151, LBH5-151, and LBH6-151 High Output UV water treatment systems. It's also the correct lamp across the wider "-151" High Output family: the NSF Class A/B variants, the low-UVT "-50" crossover models, the BLACKCOMB rack-mounted Z-series, and the Contractor Series LBC4/LBC5-151 and LBC4/LBC5-R2 systems, all 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 up to 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-420HO 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.
Fits these Luminor BLACKCOMB-HO, rack, and Contractor Series systems
Standard BLACKCOMB-HO 15 GPM systems:
- LBH4-151
- LBH5-151
- LBH6-151
- LBH5-151B (NSF Class B, non-monitored)
- LBH6-151B (NSF Class B, non-monitored)
- LBH6-151A (NSF Class A, monitored, includes UV sensor)
Low-UVT crossover systems:
- LBH4-151-50
- LBH5-151-50
- LBH6-151-50
Rack-mounted Z-series systems:
Contractor Series systems:
- LBC4-151, LBC5-151
- LBC4-R2, LBC5-R2
That's 22 model numbers across four Luminor product families, and every one of them uses the RL-420HO.
Also fits Aquasana AQ-UV-15C
The RL-420HO is a confirmed match for the Aquasana AQ-UV-15C UV system, replacing the Aquasana AQ-UV-L420C lamp. If your Aquasana system uses the AQ-UV-L420C lamp, the RL-420HO is a genuine Luminor OEM replacement for it.
Complete your replacement The RL-420HO is the lamp only. For the full replacement:
- Luminor RQ-420 UV Quartz Sleeve, the quartz sleeve that houses the lamp. Replace every 24 months, or sooner if it's visibly scaled, cloudy, or damaged.
- Luminor RLQ-420HO UV Lamp and Sleeve Kit, which bundles the RL-420HO lamp, RQ-420 sleeve, and lamp key together for LBH4-151, LBH5-151, and LBH6-151.
Specs
- Replace every 12 months or 10,000 hours of use
- Length: 16.5" (420mm)
- Power: 45 Watts
Features
This Item Fits These Select Systems
Overall rating: 3.6666667 / 5 from 3 reviews.
AI Generated Review Summary
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Review topics: [].
Review highlights
Reviews
Works
"Does what it says"
Never again
"Playing ping pong with costumer service and also took 1 week and half. Also Lamp broke day 1. Buying somewhere else arrived in lest than 4 day week end includes"
Q&A
Overall rating: 3.6666667 / 5 from 3 reviews.
AI Generated Review Summary
Summary topics
Review topics: [].
Review highlights
Reviews
Video Instructions Were Excellent!
"We trust the replacement light is operating properly, but I must say the online videos about how to replace the UV bulb and sleeve were excellent!"
Works
"Does what it says"
Never again
"Playing ping pong with costumer service and also took 1 week and half. Also Lamp broke day 1. Buying somewhere else arrived in lest than 4 day week end includes"
Q&A
Q:
How do I know if the RL-420HO is the right lamp for my system?
A:
Check the model number on your system's nameplate. The RL-420HO fits every Luminor "-151" High Output model across the BLACKCOMB-HO, rack, and Contractor Series lines, listed above. If your model doesn't have an "LBH" or "LBC" prefix, or ends in a different number, you need a different lamp.
Q:
What does the "-50" suffix mean on models like LBH5-151-50?
A:
It marks a low-UVT crossover configuration, built for source water with reduced UV transmittance (rated to treat water at 50% UVT rather than the standard 75% minimum). These are specialty units for water with more organic material or color, but they use the same RL-420HO lamp and RQ-420 sleeve as the standard "-151" systems.
Q:
Which Luminor rack-mounted (Z-series) systems use the RL-420HO?
A:
All ten LBH4 and LBH5 Z-series rack configurations, from the base Z2 up through the Z12, Z22, Z122, and Z222 filter combinations, share the same RL-420HO lamp; the Z-suffix number only describes the sediment and carbon pre-filter setup, not the UV lamp. LBH5-Z12 and LBH5-Z22 are the configurations ESP stocks as complete systems.
Q:
Does the RL-420HO also work in my Contractor Series LBC4-151, LBC5-151, LBC4-R2, or LBC5-R2 system?
A:
Yes. The Contractor Series 15 GPM lineup (LBC4-151/LBC5-151) and its R2 rack configuration (LBC4-R2/LBC5-R2) use the same High Output lamp platform as the BLACKCOMB-HO 4.1/5.1/6.1 LBH-151 systems, so all four take the RL-420HO lamp and RQ-420 sleeve.
Q:
Will a non-Luminor replacement lamp work in my 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.
