Outdoor smart lighting: what to buy for the porch, path and yard

Check the weather rating before anything smart

Outdoor fixtures are sold as damp location (a covered porch or soffit, no direct rain) or wet location (rain, sprinklers and snow can hit it). A fixture on an open post, a path light or an uplight in a planting bed needs the wet listing. Safety listings for outdoor luminaires follow standards such as UL 1598 for line-voltage fixtures and UL 1838 for low-voltage landscape lighting systems; look for the listing mark on the box or the fixture label.

Some products also show an IP code. It has two digits: the first covers dust and solid objects, the second covers water. IP65 means dust-tight and protected against water jets, which suits most open-air spots. IP44 means protected against splashing, which is enough only under a roof. A smart bulb screwed into an open fixture is exposed too: use a bulb rated for wet locations, or put it in a sealed, wet-rated fixture. Also read the low-temperature rating on the package, because cold weather shortens battery life and can interrupt Wi-Fi bulbs.

Three ways to make outdoor lights smart

Porch and entry lights (line voltage)

The simplest upgrade for a house you own is a smart switch. Turn off power at the breaker, confirm with a non-contact tester, and check that the switch box has a neutral wire; many older boxes do not (see smart switches without a neutral wire). If you are unsure, hire a licensed electrician and follow local code. If you rent or cannot touch the wiring, put a wet-rated smart bulb in the existing fixture and cover the wall switch with a guard so nobody turns it off by habit. The front door security kit shows how a porch light fits with a lock and doorbell.

Path, garden and deck lighting (12 V low voltage)

A landscape system uses a plug-in transformer that steps 120 V down to 12 V, with thin cable running to each fixture. Low voltage is more forgiving to install and the fixtures are usually LED. Three details decide whether it works well:

• Transformer capacity. Add up the wattage of every fixture and keep the total comfortably below the transformer’s rating. Ten 4 W LED path lights draw 40 W, so a 100 W transformer leaves plenty of headroom.
• Cable length and gauge. Voltage drops along long runs, so far-away lights look dimmer. Use the heavier gauge recommended for the run length and split long layouts into two cable runs.
• The outlet. The transformer plugs into an outdoor outlet protected by a GFCI. The 2020 National Electrical Code requires GFCI protection for outdoor outlets at dwellings, and ESFI advises plugging outdoor lights and decorations into GFCI-protected circuits.

To make it smart, plug the transformer into an outdoor-rated smart plug (check that the plug’s amp and watt rating exceeds the transformer’s load), or buy a transformer with a built-in timer or Wi-Fi. Read the outdoor smart plug guide for ratings and covers.

Motion lights and cameras

A light that comes on when something moves is a better deterrent than a light that stays on all night, and it saves energy. Mount the motion sensor where it sees the approach to a door or driveway, not the street. Lower the sensitivity if cars, trees or the neighbor’s cat set it off. A floodlight camera adds recording, but a camera aimed at a neighbor’s window or yard creates a legal and social problem; see where to place security cameras and security cameras and neighbors.

Schedules that make sense

• Sunset to bedtime for decorative and path lights, with an offset of 15–30 minutes after sunset so they do not come on in daylight.
• Dim, then off. Many fixtures can drop to 20–30% after 10 p.m. and switch off at midnight.
• Motion at full brightness for security lights, on a short timer of a few minutes.
• Away mode. Keep a porch light on a schedule even when nobody is home.

Ask where the schedule lives. If it runs inside the device or hub, it keeps working when the Wi-Fi drops; if it exists only in a cloud account, an outage can leave your lights off or on.

Be a good neighbor

DarkSky International’s five principles for outdoor lighting translate directly into smart settings: light should be useful, targeted (shielded and aimed down), low level, controlled (timers and motion sensors) and warm-colored. In practice that means warm white bulbs rather than cool blue-white, fixtures with a shield, no light shining into windows, and brightness no higher than the task requires. HOAs often write lighting rules; see HOA rules for cameras, doorbells and outdoor devices.

What it costs to run

The Department of Energy says residential LEDs, especially ENERGY STAR certified ones, use at least 75% less energy than incandescent lighting, and ENERGY STAR cites up to 90% less. Example: ten 4 W LED path lights running 6 hours a night use 87.6 kWh a year, about $16 at 18¢ per kWh. Ten 20 W halogen fixtures on the same schedule use 438 kWh, about $79. Use the LED bulb savings calculator with your own numbers.