Luminor RL-850 Equivalent Replacement UV Lamp

Part Number:
Lamp Category:
Ready to Ship - In Stock Ready to Ship - In Stock


Watts: 42
Length: 850 mm
Base: B54
Base Description: 4 Pin Single Ended, 2 Level Luminor Base (B54)
Qtz. OD: 15 mm
Wiring: Preheat
Output: Standard
Category: Preheat
Type: L
Wires: 2
Description: RL-850 Luminor (Blackcomb) Equivalent Replacement Lamp
Note: Color of Lamp Base has no bearing on operation or use, and should not be considered when determining lamp needed.

This lamp is an equivalent replacement lamp for the following:

Brand Model
Aqua Flo 40040016, GEN 5-20, GEN 6-20
Aqua Stream RL-850
Chandler Systems UV20, UVLMP-20
Hankscraft H2O LPUV-B21S10, LPUV-L21S10, LPUV-RL-850
Luminor Environmental 140004, Blackcomb LB4-201, Blackcomb LB5-201, Blackcomb LB6-201, RL-850
Safeway Water SWUV-21, RL-850
US Water Systems 408-USWUV-20, 409-USWUV-LMP-20

Original Manufacturer has begun adding a feature on some Luminor Power Supplies requiring a key be replaced with the lamp to reset the countdown timer. The key is found on the side of the Power Supply near where the power cord exits. At this time, we do not include a new key.

Disclaimer: This is an Atlantic Ultraviolet Corporation® STER-L-RAY® brand lamp. It can be used as an equivalent replacement lamp for other brands.

ArmorLite™ Safety Shield is available for use with most STER-L-RAY ® Germicidal Ultraviolet Lamps. Contact our Ultraviolet Application Specialists to discuss the advantages of using germicidal lamps protected by the ArmorLite™ Safety Shield in your installation.

Our STER-L-RAY ® brand of Germicidal Ultraviolet Lamps can be used as equivalent replacement lamps for over 250 equipment brands and 5,000 models of ultraviolet equipment besides Atlantic Ultraviolet’s Air and Water Purifiers.

Can’t find lamp you are looking for? Each of our UV Application Specialists has access to an extensive cross referencing interface. Call us directly at 1-631-273-0500, Monday through Friday, 7am–6pm EST, email us at

Shipping Info

    Items marked "Ready to Ship - In Stock" are ready to ship and will do so promptly. Items marked "Varied Ship Date - Contact Us" are in production, and the ship date varies. Please place order & contact us for ship date.


Part Category:
Base Category (Pins per End):
4 Pin Base
Lamp Length:
24 - 36 in. (611 - 914mm)
Replacement Part Type:
Part Type Equipment Brand Model / Part #
Lamp Aqua Flo 40040016
Lamp Aqua Flo GEN 5-20
Lamp Aqua Flo GEN 6-20
Lamp Aqua Stream RL-850
Lamp Chandler Systems UV20
Lamp Chandler Systems UVLMP-20
Lamp Hankscraft H2O LPUV-B21S10
Lamp Hankscraft H2O LPUV-L21S10
Lamp Hankscraft H2O LPUV-RL-850
Lamp Luminor Environmental Inc. 140004
Lamp Luminor Environmental Inc. Blackcomb LB4-201
Lamp Luminor Environmental Inc. Blackcomb LB5-201
Lamp Luminor Environmental Inc. Blackcomb LB6-201
Lamp Luminor Environmental Inc. LB4-201
Lamp Luminor Environmental Inc. LB5-201
Lamp Luminor Environmental Inc. LB6-201
Lamp Luminor Environmental Inc. RL-850
Lamp Safeway Water RL-850
Lamp Safeway Water SWUV-21
Lamp Ster-L-Ray 05-2653
Lamp US Water Systems 408-USWUV-20
Lamp US Water Systems 409-USWUV-LMP-20