Landscape lighting makes a desert yard safer to walk at night and pleasant to sit in after sunset. Arizona sun, heat, gravel and hard ground are tough on fixtures and wiring, so the choices matter more here. This guide covers fixture types, shielding, outdoor safety and what to expect when the ground gets dug up.
Why desert yards are different
In the West Valley, outdoor fixtures sit in strong sun for most of the year. Plastic parts can fade, turn brittle and crack. Lenses can cloud over. Seals dry out, and then dust and monsoon rain get inside.
The ground is different too. Many yards are covered in decorative rock over a weed barrier, with drip irrigation lines running underneath. Below that, some yards have caliche, a hard, cement-like layer of soil common in Arizona. All of this affects how wire is buried and where fixtures can go.
Choosing fixtures that last in the sun
Fixtures built for outdoor use carry a wet location or damp location rating on the label. For anything exposed to rain or sprinklers, a wet location rating is the one to look for.
Metal bodies such as brass, copper or powder-coated aluminum tend to hold up better than plastic
LED fixtures give off little heat and use less power than older bulbs
Sealed fixtures keep dust and water away from the connections
Warmer light colors look softer against stone, cactus and stucco
Fixtures should be listed for outdoor use by a recognized testing lab
Low-voltage or line-voltage
Most yard and path lighting is low-voltage. A transformer plugs into an outdoor outlet or is wired in, and it steps the power down for the fixtures. Low-voltage cable carries far less shock risk, and fixtures are easier to move as plants grow.
Line-voltage lighting runs on standard household power. It is used for brighter lights, such as security floodlights on the house, post lights and some larger fixtures. Line-voltage wiring outdoors must be run and protected the way the electrical code requires, in proper conduit or cable at the proper depth, with weatherproof boxes. That is work for a licensed electrician.
Many homes use both: low-voltage lights along paths and plants, and line-voltage lights at doors and the driveway.
Keeping the night sky dark
Arizona has a state law on outdoor lighting that calls for outdoor fixtures to be fully or partially shielded, with some exceptions. Maricopa County has its own outdoor light control rules, and your city may have its own rules too. Sun City and Sun City West sit in unincorporated Maricopa County, so county rules apply there. Your community or HOA may also have its own rules.
The good news is that dark-sky friendly lighting is also comfortable lighting. It puts light where you need it and keeps it out of your neighbor’s bedroom window.
Choose shielded fixtures that point light down, not up into the sky
Aim lights at paths, steps and plants, not across the street
Use only as much brightness as the job needs
Put lights on timers, dusk sensors or motion sensors so they are not on all night
GFCI protection outdoors
Outdoor outlets need GFCI protection. A GFCI shuts off power fast when it senses current leaking where it should not, such as through water or a person. The CPSC’s GFCI fact sheet explains how it helps prevent shock.
A low-voltage transformer usually plugs into an outdoor outlet. That outlet should be GFCI protected and have a weatherproof cover that stays closed while something is plugged in. If your outdoor outlet trips often after rain, have it checked before adding lighting to it.
Digging in gravel and caliche
Burying cable in a desert yard takes some care. Rock has to be pulled back, the weed barrier cut and then closed again, and drip lines found and avoided. Where caliche is close to the surface, digging is slower and may call for different tools or a different route.
Before any digging, call 811. Arizona 811 notifies utilities so they can mark buried gas, electric, water and communication lines. Lines are sometimes closer to the surface than people expect.
Safe things you can do yourself
Some care is safe for homeowners.
Wipe dust off lenses so the light stays bright
Trim plants away from fixtures so they do not block or overheat them
Check timer settings after a power outage
Look for fixtures that are tipped over, cracked or full of water, and leave them off until they are repaired
Test outdoor GFCI outlets with the test and reset buttons
Planning lighting with Solana Electrical
It helps to walk your yard after dark and note where you feel unsure of your footing, such as steps, a gate, the path to the trash cans or the edge of a patio. That list is a good place to start.
Call us at (602) 999-2770 and a real person answers, any hour. We will talk through what you want lit, and you will hear the price before anyone drives out. Our work carries a two-year warranty on labor and material, and we are licensed under AZ ROC #341966.
If an outdoor fixture, outlet or transformer is sparking, smoking or sitting in water, keep away from it and shut off its breaker if you can reach the panel safely. For smoke or fire, call 911.
Common questions
Is low-voltage landscape lighting safer?
Low-voltage lighting carries much less shock risk than standard household power, which is one reason it is so common for paths and plants. The transformer and the outlet it plugs into still need to be installed and protected properly.
Do I need shielded fixtures in Sun City?
Arizona law and Maricopa County rules call for shielded outdoor fixtures in many cases, with some exceptions. Shielded fixtures that point light down are a safe choice, and your community may have its own rules as well.
Do I need to call 811 before installing landscape lighting?
Yes. Call 811 before digging so utilities can mark buried lines. This applies even to shallow digging for cable.
