Standards & Publications

Browse & Buy UL Standards
Standard 1838, Edition 3

Standard for Low Voltage Landscape Lighting Systems

UL CSDS Proposal
Standard 1838, Edition 3 Edition Date: November 11, 2005
Summary of Topics b1838_3_20051111_sum.html

Subject 1838

Bulletin Dated: November 11, 2005


The following changes in requirements are being proposed:

1. Revision for power unit secondary connections to require that field-connected terminal blocks be suitable for field wiring use and to address temperature limits.

2. Revision of installation instruction statements about distance from pools, spas, and fountains including (a) editorial correction to metric value, (b) installation distance statements addressing both circuits protected by GFCI and circuits not protected by GFCI and be specific to supply connection method, and (c) power unit installation distance statement specifying fountain as well as pool and spa.

3. Revision to the marking form type for the shipping container marking.

4. Addition of voltage limits for DC and non-sinusoidal AC output circuits for low voltage lighting systems.

5. Correction of text in 50.18 to reflect the wording originally proposed in the UL bulletin dated October 15, 2001 and accepted by STP 1838.

6. New requirements for luminaires for ponds and small decorative fountains.

7. Revisions to add and clarify definitions and terminology used in this standard.

8. Revisions to address applicability of PART 1 requirements to Class 2 circuit components.

9. Clarification that the protective device limiting the output to 25A is not required to be an overcurrent device; and how it is established that the output is so limited.

10. Reorganizing power supply cord length requirements.

11. Revisions to require a flood lamp in luminaire heat tests.

12. Revision to clarify the luminaire supply voltage for the Abnormal Operation Tests.

13. Revision to clarify which luminaires are not required to be subjected to the Severe Conditions Test.

14. Reorganize Section 22, Separation of Circuits.

15. Reorganize and Rename Section 24, Power Supply Connections.

16. Miscellaneous Corrections and Clarifications.

Back to Standard 1838, Edition 3

The cost to purchase this Standard varies depending on whether you are ordering a hardcopy, PDF or combination of the two. We also offer two different types of subscriptions: a one year and a three year.

You will be able to choose your purchase options on the following pages.


You have one or more subscriptions that will expire soon.


You have one or more licenses to assign


Additional information required

To serve you better, please update your account details.

Featured Standards

Recently Published

Coming Soon

UL 48
Electrical Signs
Revision Pages

UL 101
Leakage Current for Utilization Equipment
Revision Pages

UL 260
Dry Pipe and Deluge Valves for Fire-Protection Service
Revision Pages

UL 310
Electrical Quick-Connect Terminals
Revision Pages

UL 343
Pumps for Oil-Burning Appliances
Revision Pages

UL 498
Attachment Plugs and Receptacles
Revision Pages

ULC 704.1
Thermal Insulation, Polyurethane and Polyisocyanurate, Boards, Faced
Revision Pages

UL 726
Oil-Fired Boiler Assemblies
Revision Pages

UL 746A
Polymeric Materials - Short Term Property Evaluations
Revision Pages