Last Updated on October 20, 2026 by Umar Farooq
Paver patio lighting is easiest and cheapest when you plan the cable before the pavers go down, because a trench in sand and gravel takes ten minutes and the same run under finished pavers takes a weekend. Decide what each light is for, pick low-voltage fixtures for most jobs, size the transformer with some spare capacity, and leave an empty conduit under the patio so you can add lights later without lifting anything. We have a separate page on patio privacy ideas if you need the specifics.
I went through manufacturer design guides and trade articles on this, and most of them start with fixtures. The part that decides whether a lighting system looks good is the part nobody photographs, which is the cable.
Decide what each light is for before you buy any
Lights do four different jobs on a patio, and they are not interchangeable.
- Show the edge and the step. Low path lights or step lights stop people walking off the edge in the dark. This is a safety job first.
- Light the table. Overhead string lights or a fixture on a post give you light where you eat or read.
- Wash a wall or tree. Uplights add depth and make the space look bigger at night.
- Mark a path. Fixtures along a walkway guide people from the driveway to the patio.
Western Interlock's paver pathway lighting ideas groups the options the same way: path lights to outline a border, in-ground lights for a discreet look, string lights for a decorative feel and bollards for a modern one. Pick the job first. A patio with six path lights and nothing over the table is lit, but you will still eat by phone torch. If this applies to your yard, our guide to path light spacing goes into more detail.
Solar, low-voltage or mains: choose the power first
Three kinds of power run patio lights, and each has a different installation story.
| Power | Good for | Watch out for |
|---|---|---|
| Solar | Quick, no-cable accents | Needs sun; dims after a run of cloudy days |
| Low-voltage (12 V) | Path, step, uplight and in-paver fixtures | Needs a transformer and a plan for cable length |
| Mains (120 V) | Fixed lights on a house wall or a pergola | Needs an electrician and, often, a permit |
I would use low-voltage for almost everything on a patio. It is the safer one for homeowners to install, it is flexible, and the cable can be buried shallowly. Anything wired to household power, including a patio outlet or a hardwired post light, is electrician territory. That is a boundary on what this guide covers.
Lay a conduit and loop before you screed
This is the piece that saves the most work. If the patio is not built yet, the base is the moment to think about cable.
- Run a sleeve under the patio. A short length of empty conduit or large pipe, buried in the base before the sand goes on, gives you a path for cable to reach the far side later. Leave it capped and mark the ends.
- Keep cable out of the bedding sand. The sand is a nominal 1 inch of loose, uncompacted layer (ICPI Tech Spec 2). A cable lying in it is a ridge you will feel under pavers.
- Bring the transformer near the middle of the run. A transformer set in the middle of the lights lets each run be shorter, which reduces voltage drop.
- Mark where the cable goes with a photo before you cover it. Future you will want to know.
Digging a trench anywhere new means calling 811 first. It is the free national before-you-dig service, and the wait times vary by state.
If the patio is already built, run cable through the planting beds and along the edges instead. Our guide to landscaping around a paver patio covers how to keep beds lower than the patio edge, and that is where cable usually ends up.
Size the transformer with room to grow
A low-voltage paver patio lighting system draws its power from a transformer, and the transformer has a maximum wattage. The basic calculation is simple: add up the wattage of every lamp and make sure the transformer can supply at least that.
Manufacturer design guides, including Alcon's landscape lighting guidelines, say to add a margin on top. The ones I read use about 10 percent as a minimum and up to 20 percent if you expect to add fixtures later. The extra capacity matters because lighting systems tend to grow. Nobody installs a patio light and stops at one.
LED fixtures draw much less than older halogen ones, which is why most new installs use them. Check the wattage on each fixture rather than assuming.
Why the last light is always the dimmest
Voltage drops as it travels along a cable, so the fixture farthest from the transformer gets the least. It depends on cable length, cable thickness (gauge) and total wattage. In practice, that means the last light on a long run looks dimmer than the first.
Ways to reduce it, from the design guides I read:
- Use thicker cable. A lower gauge number means thicker wire, and common choices are 12-gauge and 10-gauge.
- Keep runs short. Split a long run into two shorter ones, each back to the transformer.
- Loop the cable. Wiring a run as a loop rather than a dead end helps balance brightness along it. One trade article explains that in a straight run the light nearest the transformer is brightest and the farthest the dimmest.
- Use separate runs for separate zones, such as steps and path, so each can be switched independently.
- Measure at the end. After installation, check the voltage at the farthest fixture. It is the only reliable test.
Vendor tables for cable length against wattage differ between brands, so check the one for your product rather than relying on a rule of thumb. (The forum rules of thumb you find online are fine for checking a plan. They are not specifications.)
Put lights in the pavers, with caution
In-ground paver lights sit flush with the surface and replace one paver, which is why they look so clean. A trade article on paver lights notes that the cable runs in the sand bed, and the light takes the place of a unit.
That is a real design with real trade-offs:
- Choose a fixture rated for foot traffic and for water. Look for a stated waterproof rating and a drain path.
- Plan the spot before laying. The light needs a pocket in the sand bed and a cable lead, which is easy while you lay and awkward afterward.
- Expect to replace one later. Like any electrical part outdoors, a light can fail, and a paver-sized hole is easier to service than a buried one.
- Stay away from water features. Instructions I read say not to use these systems with submersible or pool equipment or close to a pool. Follow your fixture's manual and your local code.
If you are lighting steps, the cheek wall or riser is usually a better home for the light than the tread, and paver steps ideas shows where those walls sit.
String lights and post lights for the dining zone
String lights are the most common choice for the table, because they need no trench. They need two supports and, usually, a nearby outlet or a solar panel.
- Anchor them to something real. A post set in a footing, a house wall or a pergola, not a patio umbrella stand. If you are planning posts, build them before the pavers (see paver patio with pergola).
- Pick warm bulbs. Warm white reads as inviting on pavers, and cool white makes a patio feel like a car park.
- Use a dimmer or a timer. Both are cheap, and a timer means you never come home to a dark patio.
Light the path, not the whole yard
The common mistake in paver patio lighting is to light everything. Fewer lights, placed with intent, look better and use less power. Aim for pools of light with dark between them. A path light every few steps beats a runway of identical fixtures, and a single uplight on a tree does more than five on a wall.
The cheapest first step is to put the cable and a spare sleeve in while the base is open, add three or four fixtures, and see how it feels after dark before adding more. Then you can add a fixture without touching a paver, which is the whole point of planning the cable first.
FAQ
How do you install lights in a paver patio?
Plan the cable before laying pavers. Run low-voltage cable in a trench or conduit through the base, bring it to the fixture position, and set an in-ground paver light flush with the surface in place of one paver. Keep cable out of the bedding sand, and check the fixture's instructions for drainage.
What is the best lighting for a paver patio?
For most patios, low-voltage LED path and step lights plus overhead string lights cover safety and atmosphere. Solar suits quick accents, and mains-powered fixtures belong with an electrician.
Can you add lights to an existing paver patio?
Yes. Run the cable through the planting beds and along the edges rather than under the pavers, and use surface-mounted path lights, step lights on walls or string lights. Lifting pavers to run cable is possible but is more work than routing around.
How many lights does a paver patio need?
There is no fixed number. Light the edges and steps for safety, the dining area for use, and one feature such as a tree or wall for depth. Start with a few, and size the transformer with spare capacity so you can add more.
Is low-voltage lighting safe to install yourself?
Low-voltage systems carry far less risk than household wiring and are commonly installed by homeowners. Anything connected to household power, such as an outlet, a hardwired fixture or a transformer wired into the house, should be done by a licensed electrician following local code.
