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


Watts: 40 Watts
Length: 386 mm
Base: B1
Base Description: 1 Single Pin Double Ended (B1)
Qtz. OD: 15 mm
Wiring: Instant Start
Output: HO
Category: HO
Type: L
Wires: 0
Description: GHO18T5L
Note: Color of Lamp Base has no bearing on operation or use, and should not be considered when determining lamp needed.

This lamp is a replacement lamp for the following Atlantic Ultraviolet Corporation® Ultraviolet Products:

Brand Model
AeroLogic® ADHO18-2, ADHO18-4
SaniLight® DHO18-1S, DHO18-2S
SaniRay® RRDHO18-1S, RRDHO18-2S, RRDHO18-4S

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:
Atlantic UV Product Line:
AeroLogic, SaniRay
Base Category (Pins per End):
Single Pin Base
Lamp Length:
12 - 24 in. (306 - 610mm)
Replacement Part Type:
Part Type Equipment Brand Model / Part #
Lamp Aero-Logic ADHO18-2
Lamp Aero-Logic ADHO18-4
Lamp Atlantic Ultraviolet Corporation ADHO18-2
Lamp Atlantic Ultraviolet Corporation ADHO18-4
Lamp Atlantic Ultraviolet Corporation GHO18T5L
Lamp Atlantic Ultraviolet Corporation RRDHO18-1S
Lamp Atlantic Ultraviolet Corporation RRDHO18-2S
Lamp Atlantic Ultraviolet Corporation RRDHO18-4S
Lamp SaniLight DHO18-1S
Lamp SaniLight DHO18-2S
Lamp SaniRay RRDHO18-1S
Lamp SaniRay RRDHO18-2S
Lamp SaniRay RRDHO18-4S
Lamp Ster-L-Ray 05-0687
Lamp Ster-L-Ray GHO18T5L