UV Lamp
"Product came as expected. Had a lamp recently go bad and ESP was very helpful with warranty replacement."
Luminor RL-820 Replacement UV Lamp for LB4-101, LB5-101, LB6-101
Q&As
Luminor RL-820 Replacement UV Lamp for LB4-101, LB5-101, LB6-101
Q&As
Part Number:
RL-820
Replacement UV lamp with reset key restores 9000 hour output for LB4 101 and LB5 101 whole home systems.
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Description
The RL-820 is a genuine Luminor replacement UV lamp and lamp key for LUMINOR BLACKCOMB LB4-101, LB5-101, and LB6-101 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 9,000 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 9,000 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-820 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 systems
- LB4-101
- LB5-101
- LB6-101
- LB5-101B (NSF Class B, non-monitored)
- LB6-101B (NSF Class B, non-monitored)
- LB6-101A (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 "-101" flow rating and use the RL-820.
Complete your replacement The RL-820 is the lamp only. For the full replacement:
- Luminor RQ-820 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-820 UV Lamp and Sleeve Kit, which bundles the RL-820 lamp, RQ-820 sleeve, and lamp key together for LB4-101, LB5-101, and LB6-101.
Specs
- Replace every 12 months or 9,000 hours of use
- Length: 32.3" (820mm)
- Power: 39 Watts
Features
This Item Fits These Select Systems
Helpful Info & Downloads
Downloads
Overall rating: 4.75 / 5 from 16 reviews.
AI Generated Review Summary
Summary topics
Review topics: [shipping, price, system, service, esp, process].
Review highlights
Reviews
Bulb arrived broken - ESP not accepting for return
"I have a Luminor LB5-101B system that calls for an RL-820 UV bulb per the unit labeling. I purchased this exact bulb from ESP Water. The bulb arrived at my home from ESP with one filament broken (open circuit using a ohmmeter). ESP claims this is the wrong bulb for my system and the return window has closed. The replacement bulb labeling on my system suggests otherwise. I wasted $111 and I still don't have a functional UV system. Frustrating. Buyer beware. Consider another UV bulb vendor for your replacement bulbs."
Excellent Customer service and Product
"I recently had an issue with one of the lamps that was delivered with my order, so I contacted customer service for assistance. Their response was excellent from start to finish. They were prompt in returning my calls, professional in their communication, and genuinely focused on resolving the problem quickly. After explaining the issue, the team immediately arranged to send me a replacement lamp, and the process was smooth and hassle-free. It’s clear they stand behind their products and truly value their customers. Customer service like this makes a big difference. The responsiveness, follow-through, and overall professionalism exceeded my expectations. I’m very happy with the service I received and would confidently recommend this company to others based on the support experience alone."
Loved it
"Thanks"
Perfect! So happy to have found you.
"I love this filtering system. Had my water tested amd it times 99 percent of all unwanted contaminates."
Right part good price
"ESP always has what I need at a decent price."
Perfect
"Shipping was quick and bulb worked as expected. I will be ordering again next year."
Good!
"Customer service was excellent!!"
Replacement parts
"Great customer support and promt delivery"
Works great.
"The lamp was well packaged, and also had the chip. Easy install with instructions. Would definitely buy again."
Q&A
Overall rating: 4.75 / 5 from 16 reviews.
AI Generated Review Summary
Summary topics
Review topics: [shipping, price, system, service, esp, process].
Review highlights
Reviews
UV Lamp
"Product came as expected. Had a lamp recently go bad and ESP was very helpful with warranty replacement."
Bulb arrived broken - ESP not accepting for return
"I have a Luminor LB5-101B system that calls for an RL-820 UV bulb per the unit labeling. I purchased this exact bulb from ESP Water. The bulb arrived at my home from ESP with one filament broken (open circuit using a ohmmeter). ESP claims this is the wrong bulb for my system and the return window has closed. The replacement bulb labeling on my system suggests otherwise. I wasted $111 and I still don't have a functional UV system. Frustrating. Buyer beware. Consider another UV bulb vendor for your replacement bulbs."
Excellent Customer service and Product
"I recently had an issue with one of the lamps that was delivered with my order, so I contacted customer service for assistance. Their response was excellent from start to finish. They were prompt in returning my calls, professional in their communication, and genuinely focused on resolving the problem quickly. After explaining the issue, the team immediately arranged to send me a replacement lamp, and the process was smooth and hassle-free. It’s clear they stand behind their products and truly value their customers. Customer service like this makes a big difference. The responsiveness, follow-through, and overall professionalism exceeded my expectations. I’m very happy with the service I received and would confidently recommend this company to others based on the support experience alone."
Loved it
"Thanks"
Perfect! So happy to have found you.
"I love this filtering system. Had my water tested amd it times 99 percent of all unwanted contaminates."
Right part good price
"ESP always has what I need at a decent price."
Perfect
"Shipping was quick and bulb worked as expected. I will be ordering again next year."
Good!
"Customer service was excellent!!"
Replacement parts
"Great customer support and promt delivery"
Works great.
"The lamp was well packaged, and also had the chip. Easy install with instructions. Would definitely buy again."
Q&A
Q:
How do I know if the RL-820 is the right lamp for my system?
A:
Check the model number on your system's nameplate. The RL-820 fits any Luminor BLACKCOMB system ending in "-101": LB4-101, LB5-101, LB6-101, LB5-101B, LB6-101B, and LB6-101A. If your model ends in a different number, like -061, -151, or -201, you need a different lamp.
Q:
My system is showing a "Lamp Expired" alarm. What does that mean?
A:
It means the lamp has reached the end of its rated life, or a new lamp was installed but the countdown timer on the controller was never reset. Luminor's guidance is that water may not be adequately treated once a lamp has expired, so replace the lamp and reset the timer as soon as possible. Holding the controller button for 5 seconds defers the alarm for 7 days, up to three times, but this doesn't restore UV treatment in the meantime.
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:
I installed a new RL-820 and now the system says "Lamp Incorrect." What's wrong?
A:
This alarm means the lamp key doesn't match what your chamber requires. Compare the part number on the lamp key to the silver label on the UV chamber. If they don't match, you have the wrong lamp; the RL-820 is for the standard-output LB4/LB5/LB6-101 systems listed above, and BLACKCOMB-HO systems use an entirely different model and lamp lineup. If the numbers do match and the alarm persists, contact Luminor support.
Q:
How do I reset the lamp timer after installing the RL-820?
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 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.
