Landscape & low-voltage lighting
FX Luminaire transformers, LED fixtures, wire gauge, voltage drop, and path/uplight layouts.
What voltage is landscape lighting?
Most professional landscape lighting is low-voltage 12V AC (sometimes 15V taps on multi-tap transformers), powered by a magnetic or electronic transformer from 120V line voltage. It is not line-voltage lighting in the garden—keep the transformer in a listed enclosure and bury LV cable per code.
How do I size an FX Luminaire transformer?
Add the wattage (or VA) of every fixture on the run, then choose a transformer with ~20–30% headroom. Check voltage drop: long wire runs may need thicker cable, multiple home runs, or a higher tap. Never load a transformer to 100% continuous.
What wire gauge should I use for low-voltage landscape lighting?
Common sizes are 12, 10, and 8 AWG direct-burial landscape cable. Longer runs and higher wattage need heavier gauge to limit voltage drop (fixtures dim or change color when voltage sags). Use a voltage-drop calculator and measure voltage at the last fixture at night.
LED vs halogen landscape lights — which should I buy?
LED fixtures use far less wattage, run cooler, and last longer—modern FX Luminaire lines are LED-first. Halogen is mostly legacy. When retrofitting, re-check transformer load and dimming compatibility; LEDs draw less power but can reveal undersized wire as less of a voltage-drop issue (or expose bad splices).
What causes voltage drop in landscape lighting?
Voltage drop rises with watts, wire length, and thinner gauge. Symptoms: fixtures farthest from the transformer look dim or off-color. Fixes include heavier cable, shorter home runs, daisy-chain redesign into a T or hub layout, or using a higher transformer tap within fixture limits.
How do I bury landscape lighting wire?
Use direct-burial rated low-voltage cable, typically 6" deep (deeper under drives per local code). Leave gentle service loops at fixtures, keep splices in listed gel-filled connectors, and never use indoor zip cord outdoors.
Can I daisy-chain landscape light fixtures?
Yes, but long daisy chains increase voltage drop at the end. Prefer multiple home runs or a hub layout for large jobs. Always calculate load per cable leg.
What is a multi-tap landscape transformer?
Multi-tap transformers offer several output voltages (for example 12V, 13V, 14V, 15V) so you can compensate for voltage drop on long runs. Measure at the fixture and pick the tap that lands near the fixture’s rated voltage—do not overvoltage LEDs.
Do landscape lights need a photocell or timer?
Most transformers include or accept a photocell, astronomical timer, or smart control so lights run dusk-to-dawn or on a schedule. Photocells should face north/shaded from porch lights to avoid short cycling.
Why are my landscape lights flickering?
Common causes: loose splices, overloaded transformer, failing photocell, incompatible LED drivers on an electronic transformer, or shared circuits with motors. Reseat connections, measure load, and verify transformer type matches LED fixtures.
What is the difference between path lights and uplights?
Path lights mount on stems to wash walkways with shielded downlight. Uplights (directional) sit at grade to graze walls, trees, or architecture. Use both for layered designs—path for safety, uplights for drama.
How many watts can I put on a landscape lighting run?
Limit each cable run by voltage-drop and by the transformer’s capacity. A 300W transformer might feed several runs totaling ≤240–270W. Check ampacity of the wire and keep continuous load under transformer rating.
Are FX Luminaire fixtures waterproof?
FX fixtures are designed for wet locations when installed as directed—use proper seals, aiming plugs, and listed connectors. Standing water over poorly sealed splices is still a failure point.
Can I dim landscape LED lighting?
Some FX systems support dimming via compatible controls or PWM modules. Not every LED fixture dims on every transformer—confirm the fixture/control pairing before promising a dimming scene.
What color temperature should landscape lighting use?
Warm white (around 2700–3000K) is common for residential architecture and plants. Cooler CCT can look harsh on foliage. Keep CCT consistent across a property unless you intentionally contrast spaces.
How do I avoid glare from path lights?
Choose shielded optics, lower lumen packages, and aim carefully. Mount height and spacing matter more than raw brightness—over-lighting a path creates glare pools and dark gaps.
Do I need a GFCI for a landscape lighting transformer?
Follow local electrical code. Many jurisdictions require GFCI-protected receptacles for exterior transformer plugs. Use a listed outdoor enclosure and drip loops on cords.
How should I place landscape path lights?
For path lights, space path lights so beams overlap slightly along the walk without hot spots—often 6–10 ft apart depending on lumen output and fixture height. Layer ambient path lighting with focal uplighting rather than blasting every surface at high brightness. Browse our landscape lighting collection for FX Luminaire fixtures matched to the job.
How should I place landscape uplights?
For uplights, place uplights at the drip line or trunk depending on whether you want canopy wash or bark texture, and hide the fixture from primary viewpoints. Layer ambient path lighting with focal uplighting rather than blasting every surface at high brightness. Browse our landscape lighting collection for FX Luminaire fixtures matched to the job.
How should I place landscape hardscape lights?
For hardscape lights, use under-cap or riser lights for steps and walls; keep glare off walking surfaces and seal penetrations in masonry. Layer ambient path lighting with focal uplighting rather than blasting every surface at high brightness. Browse our landscape lighting collection for FX Luminaire fixtures matched to the job.
How should I place landscape well lights?
For well lights, recess well lights in grade for clean architecture washes; provide drainage so fixtures do not sit in a puddle. Layer ambient path lighting with focal uplighting rather than blasting every surface at high brightness. Browse our landscape lighting collection for FX Luminaire fixtures matched to the job.
How should I place landscape deck lights?
For deck lights, use low-glare rail and step lights listed for the mounting surface; coordinate with the main 12V transformer load. Layer ambient path lighting with focal uplighting rather than blasting every surface at high brightness. Browse our landscape lighting collection for FX Luminaire fixtures matched to the job.
How should I place landscape water feature lights?
For water feature lights, only use fixtures listed for wet/pond environments and isolate lighting circuits from fountain pump GFCI as required. Layer ambient path lighting with focal uplighting rather than blasting every surface at high brightness. Browse our landscape lighting collection for FX Luminaire fixtures matched to the job.
What size landscape transformer do I need for a 75W LED load?
For a connected LED load near 75W, choose a transformer with about 20–30% headroom (roughly 94–98W capacity) and split home runs so no single cable leg suffers excessive voltage drop. Confirm fixture VA, not just marketing watts, and measure voltage at the farthest light after install.
What size landscape transformer do I need for a 150W LED load?
For a connected LED load near 150W, choose a transformer with about 20–30% headroom (roughly 188–195W capacity) and split home runs so no single cable leg suffers excessive voltage drop. Confirm fixture VA, not just marketing watts, and measure voltage at the farthest light after install.
What size landscape transformer do I need for a 300W LED load?
For a connected LED load near 300W, choose a transformer with about 20–30% headroom (roughly 375–390W capacity) and split home runs so no single cable leg suffers excessive voltage drop. Confirm fixture VA, not just marketing watts, and measure voltage at the farthest light after install.
What size landscape transformer do I need for a 600W LED load?
For a connected LED load near 600W, choose a transformer with about 20–30% headroom (roughly 750–780W capacity) and split home runs so no single cable leg suffers excessive voltage drop. Confirm fixture VA, not just marketing watts, and measure voltage at the farthest light after install.
What size landscape transformer do I need for a 900W LED load?
For a connected LED load near 900W, choose a transformer with about 20–30% headroom (roughly 1125–1170W capacity) and split home runs so no single cable leg suffers excessive voltage drop. Confirm fixture VA, not just marketing watts, and measure voltage at the farthest light after install.
What size landscape transformer do I need for a 1200W LED load?
For a connected LED load near 1200W, choose a transformer with about 20–30% headroom (roughly 1500–1560W capacity) and split home runs so no single cable leg suffers excessive voltage drop. Confirm fixture VA, not just marketing watts, and measure voltage at the farthest light after install.
How do I connect landscape lighting wire with waterproof connectors?
Strip conductors cleanly, join with listed gel-filled or heat-shrink waterproof connectors rated for direct burial, and keep copper bright—corrosion at splices is the top failure point on LV systems.
Can I mix FX Luminaire with other 12V LED brands on one transformer?
Often yes electrically if all fixtures are 12V and the total load fits, but dimming and tap recommendations may differ. Keep loads documented and measure voltage at mixed branches.
How bright should landscape path lighting be?
Aim for soft guidance, not roadway brightness. Shielded path lights with modest lumens spaced evenly beat a few glare bombs. Walk the path at night and adjust before final burial.
What is moonlighting in landscape lighting design?
Moonlighting places fixtures high in trees to cast dappled light downward, mimicking moonlight. Use secure mounting hardware and plan service access for lamp changes.
How do I light outdoor steps safely?
Use low-glare step or riser lights to mark tread edges without blinding users. Keep brightness consistent on every step and follow wet-location listings.
Should landscape transformers be installed indoors or outdoors?
Use a listed outdoor enclosure or indoor location per the transformer instructions. Provide GFCI protection where required, ventilation for magnetic units, and service access.
How do I troubleshoot a landscape lighting short?
Divide the cable into sections, disconnect fixtures, and use a continuity/megger approach to find pinched cable or flooded splices. Repair with direct-burial rated methods—not electrical tape alone.
What maintenance do LED landscape lights need?
Annually check aiming, clean lenses, inspect splices, and verify transformer taps still deliver correct voltage after landscape growth changes wire routes.
Can low-voltage lighting run under a driveway?
Yes with conduit sleeves under paving for future pulls. Direct-burial cable under drives risks crushing—sleeve it during hardscape work.
How do I aim an uplight without washing a window?
Offset the fixture, use glare shields, and aim at foliage or textured walls instead of glass. Test at night before burying cable.
When should I use 16 AWG wire for landscape lighting?
16 AWG landscape cable is chosen based on load and run length: lower gauge numbers are thicker and better for long, high-wattage runs. Calculate voltage drop for your watts and distance; if the farthest fixture falls below the LED’s minimum voltage, move to a thicker cable or shorter home run.
When should I use 14 AWG wire for landscape lighting?
14 AWG landscape cable is chosen based on load and run length: lower gauge numbers are thicker and better for long, high-wattage runs. Calculate voltage drop for your watts and distance; if the farthest fixture falls below the LED’s minimum voltage, move to a thicker cable or shorter home run.
When should I use 12 AWG wire for landscape lighting?
12 AWG landscape cable is chosen based on load and run length: lower gauge numbers are thicker and better for long, high-wattage runs. Calculate voltage drop for your watts and distance; if the farthest fixture falls below the LED’s minimum voltage, move to a thicker cable or shorter home run.
When should I use 10 AWG wire for landscape lighting?
10 AWG landscape cable is chosen based on load and run length: lower gauge numbers are thicker and better for long, high-wattage runs. Calculate voltage drop for your watts and distance; if the farthest fixture falls below the LED’s minimum voltage, move to a thicker cable or shorter home run.
When should I use 8 AWG wire for landscape lighting?
8 AWG landscape cable is chosen based on load and run length: lower gauge numbers are thicker and better for long, high-wattage runs. Calculate voltage drop for your watts and distance; if the farthest fixture falls below the LED’s minimum voltage, move to a thicker cable or shorter home run.
What is a landscape lighting home run?
A home run is a dedicated cable from the transformer to a fixture group. More home runs mean less voltage drop and easier troubleshooting than one long daisy chain.
How do I hide landscape lighting transformers?
Place listed enclosures in shrub screening or side yards with service access and airflow. Do not bury transformers or seal them in airtight boxes not intended for the product.
Can landscape lights share a circuit with a fountain pump?
Better to separate. Pumps can induce flicker and trip GFCI shared with lighting. Follow electrician guidance for outdoor circuits.
What IP rating do landscape lights need?
Use wet-location listed fixtures for ground exposure. IP ratings help compare seal quality, but listing and proper install matter more than a number alone.
How do I light a flagpole?
Use ranked narrow-beam uplights sized for pole height, aimed to graze the flag without blasting neighbors. Check local light-trespass rules.
Should I use copper or aluminum landscape wire?
Use cable listed for landscape LV—typically copper conductors in direct-burial jackets. Follow manufacturer wire specs for FX systems.
How long do LED landscape fixtures last?
Quality LED modules often target tens of thousands of hours, but seals, drivers, and splices fail first if installed poorly. Buy repairable professional fixtures when possible.
What is glare control in outdoor lighting?
Shields, proper aiming, lower lumen packages, and warmer CCT reduce glare. Good design lights the subject, not the viewer’s eyes.
Can I retrofit halogen path lights to LED?
Sometimes with LED lamps in compatible fixtures, but thermal and optical design may not match. Purpose-built LED fixtures usually perform better.
How do I size a landscape lighting circuit breaker?
The primary (120V) side should be on an appropriately rated GFCI-protected circuit with headroom for transformer inrush—have an electrician size the branch circuit.
What is a landscape well light?
A landscape well light is recessed grade-level accent for architecture and trees. Choose beam angle, lumen package, and finish for the surface you are lighting, and add the fixture watts to your transformer calculation. See our FX Luminaire guide for layout tips.
What is a landscape path light?
A landscape path light is stem-mounted shielded light for walkways. Choose beam angle, lumen package, and finish for the surface you are lighting, and add the fixture watts to your transformer calculation. See our FX Luminaire guide for layout tips.
What is a landscape wall wash?
A landscape wall wash is even illumination across wide vertical surfaces. Choose beam angle, lumen package, and finish for the surface you are lighting, and add the fixture watts to your transformer calculation. See our FX Luminaire guide for layout tips.
What is a landscape spotlight?
A landscape spotlight is narrow beam for focal plants or statues. Choose beam angle, lumen package, and finish for the surface you are lighting, and add the fixture watts to your transformer calculation. See our FX Luminaire guide for layout tips.
What is a landscape hardscape light?
A landscape hardscape light is under-cap or riser light integrated into walls and steps. Choose beam angle, lumen package, and finish for the surface you are lighting, and add the fixture watts to your transformer calculation. See our FX Luminaire guide for layout tips.
What is a landscape hanging light?
A landscape hanging light is suspended accent for patio structures listed for wet locations. Choose beam angle, lumen package, and finish for the surface you are lighting, and add the fixture watts to your transformer calculation. See our FX Luminaire guide for layout tips.
What is a landscape flood light?
A landscape flood light is wider beam for broad facades—use carefully to limit trespass. Choose beam angle, lumen package, and finish for the surface you are lighting, and add the fixture watts to your transformer calculation. See our FX Luminaire guide for layout tips.
What is a landscape deck rail light?
A landscape deck rail light is low-glare rail fixture for outdoor living spaces. Choose beam angle, lumen package, and finish for the surface you are lighting, and add the fixture watts to your transformer calculation. See our FX Luminaire guide for layout tips.