GPH463T5L/HO/4PSE 4 Pin

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


Watts: 50 Watts
Length: 463 mm
Base: B16
Base Description: 4 Pin Single Ended (B16)
Qtz. OD: 15 mm
Wiring: Preheat
Output: HO
Category: HO
Type: L
Wires: 2
Description: GPH463T5L/HO/4PSE
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
Emperor Aquatics 50 Watt Smart HO, FL-2538
Pentair 20050, 522635, 523035, E50S, E50S-W, FL-2538-IP
UV Superstore GL-5463-4H74Y
Van Remmen UV Technology 155001, UV+ Series UV10+

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:
12 - 24 in. (306 - 610mm)
Ozone Producing:
Part Type Equipment Brand Model / Part #
Lamp Atlantic Ultraviolet Corporation GPH463T5L/HO/4PSE
Lamp Emperor Aquatics, Inc. 50 Watt Smart HO
Lamp Emperor Aquatics, Inc. FL-2538
Lamp Pentair 20050
Lamp Pentair 522635
Lamp Pentair 523035
Lamp Pentair E50S
Lamp Pentair E50S-W
Lamp Pentair FL-2538-IP
Lamp Ster-L-Ray 05-0403-R
Lamp Ster-L-Ray GPH463T5L/HO/4PSE
Lamp UV Superstore, Inc. GL-5463-4H74Y
Lamp Van Remmen UV Technology 155001
Lamp Van Remmen UV Technology UV+ Series UV10+