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Landscape contractors work hard to create all kinds of beautiful hardscapes using everything from rare imported stone to mass manufactured pavers. During the day, a patio sporting arcing circuits of imported porphyry stone beautifully reflect the sun’s rays by bouncing back rich grey, green and red tones. That gorgeous spectacle is lost at night without proper hardscape lighting.
Embedding Low-Voltage Fixtures
For safety and beauty, low voltage, recessed fixtures are designed to be embedded within vertical hardscape surfaces. The box dimensions of many of these fixtures match that of a common brick, so these lights will integrate nicely into masonry work. Low voltage lights can be cast directly into concrete or block walls or into the risers of natural stone steps. Faceplates are commonly louvered so that light is directed down onto the step where it’s needed and away from the horizontal plane, where it could produce eye glare.
To embed a “brick-light” fixture, the fixture box and attached PVC conduit runs must be securely fastened to the concrete forms prior to your concrete pour with structural provisions made for conduit runs. Be sure to adequately protect the box, wiring and sockets from accidental contact with wet grout or concrete. Once the work has set, the forms can be stripped, the cabling installed and the faceplate mounted.
Don’t forget to power your low voltage lights from a UL1838-approved lighting transformer.
Before the UL1838 standard for low-voltage lighting was introduced, UL1571 and UL506 were the accepted standards in the landscape lighting industry. However, UL1571 and UL506 were found to be inadequate in the face of emerging low-voltage lighting technologies and techniques. Rather than revise those separate documents, a new comprehensive standard, UL1838, was developed. Equipment rated UL1571 and UL506 no longer comply with current UL standards for new construction on low-voltage landscape lighting systems. For example, it’s not permissible for a UL506 transformer to supply power to UL1838 luminaires.
UL1838 is the only UL standard that covers low-voltage landscape lighting. Protect your professional reputation–do not jeopardize your lighting designs with equipment that does not meet UL1838 standards.
Source: www.nightscaping.com
Francisco Uviña, University of New Mexico
Hardscape Oasis in Litchfield Park
Ash Nochian, Ph.D. Landscape Architect
November 12th, 2025
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