Low-Voltage or Line-Voltage Landscape Lighting: Which Do You Need for Your Dallas Home?
You're ready to light up your yard. Maybe it's the path to your front door or the big tree out back. Then you hit the first question: low voltage or line voltage? Your answer shapes your fixtures, your wiring, and who can install them.
Low-voltage or line-voltage landscape lighting — which do I need? This guide gives you a clear answer for your Dallas yard. The right choice depends on what you want to light and where it sits. For most homes, one system handles most of the job, with the other filling in a few spots.
We'll compare both systems side by side and show you where each one works best. Next, we'll cover the one part both systems share: your home's 120-volt power source. Then we'll walk through the Dallas rules and HOA limits that can affect your plans. You'll finish with a quick checklist to help you choose.
Low-Voltage or Line-Voltage Landscape Lighting: Which Do I Need?
Most homes need low-voltage landscape lighting. It runs on 12 volts through a transformer connected to your home's 120-volt power. It's safer around kids, pets, and water, and the small fixtures are easy to hide.
Choose low voltage for:
- Walkways and garden beds
- Uplighting trees and the front of your home
- Patios, decks, and steps
Choose line voltage (120 volts) for:
- Bright security floodlights
- Large, open areas that need strong light
- Fixtures mounted on walls, eaves, or posts
Line voltage needs deeper-buried wire or conduit and a licensed electrician. With either system, a licensed electrician should install the power source that feeds your lights.
Ready to plan your yard? See our outdoor lighting installation in Dallas.
Low-Voltage vs. Line-Voltage Landscape Lighting at a Glance
Both systems light your yard, but they get their power in different ways. That changes what the fixtures look like, how deep the wire goes, and who does the work. Here's how the two compare side by side.
| Low Voltage | Line Voltage | |
|---|---|---|
| Voltage | 12 volts | 120 volts |
| Transformer | Yes, steps home power down to 12 volts | No, runs on standard home power |
| Fixture size | Small and easy to hide | Larger and harder to hide |
| Typical burial depth | About 6 inches for the low-voltage cable | 12 to 24 inches, based on the wiring method |
| Who can install in Texas | Landscapers can install the lights; a licensed electrician handles the power source | A licensed electrician |
| Best uses | Paths, beds, trees, patios, and steps | Security floodlights and large, open areas |
| Use near water | Lower shock risk near pools and play areas | Needs added protection and care |
| Moving or adding lights | Easy to move as your yard changes | Harder to change once installed |
For plants, paths, and patios, low voltage fits best. Line voltage earns its spot where you need strong, wide light.
When Low-Voltage Landscape Lighting Is the Right Fit
Low voltage is the go-to choice for most Dallas yards. It lights the places you use and see every day, without big fixtures taking over your landscape.
Low voltage works best for:
- Walkways from your driveway to your front door
- Garden beds and shrubs
- Uplighting trees and the front of your home
- Patios, decks, and steps
The fixtures are small, so they tuck in behind plants and stones. You see the glow, not the hardware. Their tight beams also put light right where you want it. That keeps it out of your neighbor's windows.
Safety is another big plus. At 12 volts, the shock risk drops sharply. That makes low voltage a smart pick near pools, play areas, and paths your kids use.
Low voltage also grows with your yard. As your plants fill in, you can move a fixture or add a new one. You won't need to rewire the whole system.
A good layout still matters. Each transformer has a wattage limit, so it can only power so many lights. Long cable runs can also dim the lights farthest from the transformer. Voltage drop is why cable gauge and run length get planned up front rather than after.
When You Need Line-Voltage Outdoor Lighting
Low voltage covers most of your yard, but some jobs need more power. That's where line voltage comes in. It runs on the same 120 volts as the outlets inside your home.
Line voltage is the better fit for:
- Bright security floodlights over your driveway or backyard
- Fixtures mounted on walls, eaves, garages, or posts
- Large, open areas that need strong, wide light
- Spots far from the house, where long low-voltage runs would dim
Line voltage takes more work to install safely. Here's what's involved:
- Deeper wiring. The wire must be buried deeper or run through conduit.
- Weatherproof junction boxes. Every connection needs a sealed box to keep water out.
- GFCI protection. This shuts off power fast if something goes wrong.
- Bigger fixtures. Line-voltage lights are larger and harder to hide in your landscape.
In Texas, work on 120-volt outdoor circuits requires a licensed electrician. Our electricians plan the circuit, run the wire to code, and connect each fixture safely. See how we handle Dallas landscape lighting installation from start to finish.
The Part Both Systems Share: Your Home's 120-Volt Power Source
Low voltage and line voltage work differently, but they start in the same place. Both draw power from your home's 120-volt electrical system. With low voltage, that power feeds a transformer, which steps it down to 12 volts for your lights.
That starting point is the part people often overlook. It's also the part that carries full household power.
The Texas rule: State law lets landscapers install low-voltage outdoor lights without an electrician's license. That exemption does not cover the power source. The outlet or circuit that feeds your system is electrical work for a licensed electrician.
Here's what a safe power source needs:
- GFCI protection. Your outdoor outlet should cut power fast if a fault happens.
- A weatherproof in-use cover. This keeps rain out, even while the transformer is plugged in.
- The right burial depth. The 6-inch depth applies only to the 12-volt cable past the transformer. The 120-volt wire feeding the transformer must be buried deeper.
If you don't have a protected outlet where your transformer will go, we can add one.
Dallas Yards, Codes, and HOAs: What Changes Here
State law sets the baseline, but Texas cities can add stricter rules of their own. That's why we check the current City of Dallas permit requirements before your project starts. The rules for low-voltage and line-voltage work may not be the same.
If you live in the Park Cities, the rules can change again. Highland Park and University Park are separate towns with their own permit offices. A plan that works in Lakewood may need changes a few miles north.
Your HOA may have its own lighting rules too. Some limit where fixtures can go or how bright they can be. Many also restrict light that spills onto a neighbor's property. Checking these rules first saves you from moving fixtures later.
Older homes bring their own challenges. Some homes in Lakewood and East Dallas don't have an outdoor circuit ready for a transformer. They may need a new circuit before lighting can be added safely.
Before anyone digs, call 811 to have underground utility lines marked. This protects you from hitting a buried gas or electric line. If you'd rather have one team handle the planning, permits, and power, our Dallas electrical team is ready to help.
A Quick Checklist to Choose Your System
Still not sure which system fits your yard? Answer these six questions with a simple yes or no.
- Are you mostly lighting paths, plants, or trees?
- Do you need bright light for security?
- Is the area near a pool or play space?
- Is the spot far from your house?
- Do you have a GFCI-protected outdoor outlet near where the transformer will go?
- Does your HOA have lighting rules?
What your answers mean:
Yes to 1 or 3: You'll likely want mostly low voltage. It's the safer, more flexible choice for these spots.
Yes to 2 or 4: Plan to add some line voltage. Strong security light and long distances often need 120 volts.
No to 5, or yes to 6: Call for a layout first. You may need a new outlet, or a plan that fits your HOA rules.
Some yards use a mix of both. Low voltage handles the paths and trees, while line voltage covers the driveway.
Tip: Walk your yard at night before you pick fixtures. Note the dark spots, the paths you use, and the features you want to show off. That short walk makes your layout much easier to plan.
Full-Service Landscape Lighting Solutions for Dallas and Dallas County
Whether you choose low voltage, line voltage, or a mix, your yard deserves lighting that's safe and built to last. Our licensed electricians install both systems. We also handle the 120-volt power source that feeds your lights, so one team covers the whole job.
We're bringing 50 years of Berkeys expertise to Dallas. We light yards across Dallas, East Dallas, Lakewood, the White Rock Lake area, and the Park Cities. From a single walkway to your whole yard, we plan it, power it, and wire it to code.
We answer calls 24/7, so you can reach us whenever your plans are ready. Dallas homeowners give us a 4.9-star Google rating. Read their reviews and see what they say about Berkeys Plumbing, A/C & Electrical.
Business Address: 4311 Belmont Ave Suite 125, Dallas, TX 75204
Call (214) 612-0133 for landscape lighting in Dallas.
Frequently Asked Questions
Yes, low-voltage lighting is bright enough for most home landscapes. It lights paths, garden beds, trees, and the front of your home well. Its tight beams put the light right where you want it. For wide, strong security light, line voltage is the better fit.
Yes, you need a licensed electrician for the power source, even if a landscaper installs the lights. Texas lets landscapers install low-voltage lights without an electrician's license. That exemption does not cover the outlet or circuit that feeds your system.
Low-voltage cable usually needs about 6 inches of cover. That depth applies only to the 12-volt cable past the transformer. The 120-volt wire feeding the transformer needs 12 to 24 inches, based on the wiring method. Line-voltage lighting follows those deeper depths too.
Yes, you can use both low-voltage and line-voltage lighting in the same yard. Some homes use low voltage for paths and trees. Line voltage then covers security lights or large, open areas. Each system runs on its own wiring.
Yes, low voltage is the safer choice near a pool when it's installed correctly. At 12 volts, the shock risk is much lower than with 120 volts. The outlet that powers your transformer still needs GFCI protection and a weatherproof in-use cover.