Direct Burial Low Voltage Lighting Wire

Total Light direct-burial low-voltage wire is built for connecting landscape lighting fixtures to the transformer across outdoor runs. Choose the wire gauge and roll length that fit your project, then pair it with waterproof connectors for dependable underground connections. Proper wire selection helps support consistent voltage and reliable performance throughout a complete low-voltage lighting system.

Choose Wire Gauge Around the Complete System

Landscape-lighting wire carries low-voltage power from the transformer through the outdoor fixture layout. The best gauge depends on connected load, cable distance, and branch design. Total Light offers 10/2, 12/2, 14/2, 16/2, and 18/2 direct-burial options so the wire can be matched to different project demands.

As a general planning principle, heavier conductors are useful as run length and load become more demanding. 12/2 is a versatile choice for many common installations, 10/2 provides a heavier-gauge option, and 14/2, 16/2, and 18/2 can suit appropriately sized shorter or lighter-load runs. Final selection should be based on the actual system rather than gauge alone.

Measure the Cable Route, Not the Property

Add the distances between fixture locations, branches, turns, and the transformer—not just the straight-line dimensions of the yard. Allow extra cable for serviceable connections, and use waterproof outdoor-rated connectors wherever the direct-burial wire is spliced.

Related guides: Wire Gauge Guide · Voltage Drop & Transformer Taps · Voltage Drop Calculator · Waterproof Wire Connectors

Shop by gauge: 10/2 Wire · 12/2 Wire · 14/2 Wire · 16/2 and 18/2 options are available in this collection.

Quick Wire Gauge Selection

10/2Heaviest current option for more demanding runs and loads.
12/2Versatile mid-range gauge for many landscape-lighting layouts.
14/2Lighter gauge for appropriately sized shorter or lower-load runs.
16/2Smaller conductor for appropriately sized low-load runs.
18/2Smallest current option; verify voltage drop carefully for the project.

Choose by the complete run: connected wattage, cable length, branch layout, transformer output, and acceptable voltage drop all affect wire-gauge selection.

Frequently Asked Questions

What wire gauges does Total Light offer for low-voltage landscape lighting?

This collection includes 10/2, 12/2, 14/2, 16/2, and 18/2 direct-burial landscape-lighting wire, with multiple roll lengths available by gauge.

How do I choose the right wire gauge?

Consider total connected load, distance from the transformer, branch layout, and voltage-drop concerns. Heavier conductors can be useful on more demanding runs, while smaller conductors can suit appropriately sized shorter or lighter-load layouts.

Can this landscape-lighting wire be buried directly?

Yes. The wire in this collection is designed for direct-burial low-voltage landscape-lighting applications.

Why does wire gauge matter in a low-voltage lighting system?

Cable resistance contributes to voltage drop. Gauge, run length, connected load, transformer output, and circuit layout all work together, so wire should be planned as part of the complete system.