LP4390-LL Sunlight/Siemens Equivalent Replacement

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


Watts: 75 Watts
Length: 1554 mm
Base: B25
Base Description: 4 Pin Single Ended - One Pin Higher (B25)
Qtz. OD: 15 mm
Wiring: Preheat
Output: Standard
Category: Preheat
Type: L
Wires: 2
Description: 4390-LL Sunlight/Siemens
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 Azul L-1-804-N
Evoqua Water Technologies W2T365361
Siemens / Sunlight LP4390, 4390-LL, AAE1283, W2T365361-LP4390
UV Doctor 4390, UVDRX-4390

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 sales@atlanticuv.com.

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 4390-LL, Sunlight 4390-LL
Lamp Length:
48 in. & up (1220mm & up)
Ozone Producing:
Part Type Equipment Brand Model / Part #
Lamp Aqua Azul Corporation L-1-804-N
Lamp Evoqua Water Technologies LLC W2T365361
Lamp Siemens 4390
Lamp Siemens 4390-LL
Lamp Siemens AAE1283
Lamp Siemens W2T365361-LP4390
Lamp Ster-L-Ray 05-0725
Lamp Sunlight 4390
Lamp Sunlight 4390-LL
Lamp Sunlight AAE1283
Lamp Sunlight W2T365361-LP4390
Lamp UV Doctor 4390
Lamp UV Doctor UVDRX-4390