Low Voltage Landscape Lighting Transformers
Power your outdoor lighting with a low voltage landscape lighting transformer. Compare capacity, output taps, enclosure construction and timer, photocell or smart-control options to match your fixtures and layout.
Choose transformer capacity and controls
Start with the connected lighting load and follow the transformer's published LED-load and circuit limits. Check whether its capacity is specified in watts or volt-amperes; use the manufacturer's sizing guidance rather than a universal headroom percentage.
Match the output voltage and AC/DC supply requirements to the fixtures. Plan cable gauge, run length and load distribution together; a larger transformer alone does not solve voltage drop.
Check whether timers, photocells or smart controls are built in, included or sold separately. For brightness control, compare compatible landscape lighting dimmers.
Shop transformers by capacity
100W landscape transformers · 150W landscape transformers · 300W landscape transformers · 600W landscape transformers
For connected scheduling and system-specific controls, compare smart landscape lighting transformers. Select capacity from the connected load and the equipment's installation requirements, then choose the controls.
Transformers with built-in automatic controls
Choose landscape lighting transformers with built-in timers and photocells for dusk-based operation and model-specific timed shutoff. Compare the available settings and load rating before selecting a transformer.
Shop by housing and smaller capacity
Compare stainless steel landscape lighting transformers by cabinet construction, output and controls. For a smaller connected load, explore small landscape lighting transformers rated 100W and under, including 60W, 75W and 100W options.
Universal Lighting Systems transformers
Explore Universal Lighting Systems MTP transformers in 600W, 900W and 1200W capacities, with 12–22V multi-tap output and 304 stainless steel housings. Compatible timing controls are sold separately.
How to Size a Landscape Lighting Transformer
Transformer selection starts with the total connected wattage of the fixtures on the system, but capacity is only part of the design. Allow practical headroom for future additions and consider how the load is divided across cable runs. Long runs, smaller wire and higher loads can increase voltage drop, so transformer taps and circuit layout should be planned together with the fixture load.
Multi-Tap Transformers and Voltage Drop
Multi-tap transformers provide higher secondary-voltage options that can help compensate for voltage drop on longer cable runs. The goal is not to send excess voltage to the fixture; it is to deliver voltage at the fixture within the range specified by the fixture or lamp manufacturer. Measure the system under load and use the appropriate tap, wire gauge and run layout for the installation.
Build the Transformer Around the Whole System
Before choosing a transformer, map the major fixture runs and expected load. Browse low-voltage landscape lighting wire and water-resistant connectors, then match the power supply to the path lights, accent lights and other fixtures the system will support.