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--- Read About Safety and the Use of UV-C Germicidal Light on ---

Siemens / Sunlight LP4435 Equivalent Replacement UV Lamp

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


Watts: 84 Watts
Length: 838 mm
Base: B25
Base Description: 4 Pin Single Ended - One Pin Higher (B25)
Qtz. OD: 15 mm
Wiring: Preheat
Output: HO
Category: HO
Type: L
Wires: 2
Description: 4435 Sunlight/Siemens Equivalent 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
Glasco L-534433
Siemens / Sunlight LP4435, SB-20, SB-50, SBW-20, SBW-50, W2T365365, W2T365365-LP4435
Tipton Environmental LP4435
UV Doctor 4435, UVDRX-4435

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
Cross Reference Brands P to S:
Siemens LP4435, Siemens SB-20, Siemens SB-50, Siemens W2T365365-LP4435, Sunlight LP4435, Sunlight SB-20, Sunlight SB-50, Sunlight W2T365365-LP4435
Cross Reference Brands T to Z:
Tipton Environmental LP4435
Lamp Length:
24 - 36 in. (611 - 914mm)
Ozone Producing:
Part Type Equipment Brand Model / Part #
Lamp Glasco Ultraviolet L-534433
Lamp Siemens LP4435
Lamp Siemens SB-20
Lamp Siemens SB-50
Lamp Siemens SBW-20
Lamp Siemens SBW-50
Lamp Siemens W2T365365
Lamp Siemens W2T365365-LP4435
Lamp Ster-L-Ray 05-0666
Lamp Sunlight LP4435
Lamp Sunlight SB-20
Lamp Sunlight SB-50
Lamp Sunlight SBW-20
Lamp Sunlight SBW-50
Lamp Sunlight W2T365365
Lamp Sunlight W2T365365-LP4435
Lamp Tipton Environmental International Inc. LP4435
Lamp UV Doctor 4435
Lamp UV Doctor UVDRX-4435