Landscape lighting transformers may use basic timers or photocells to turn lights on and off at scheduled times or in response to changing outdoor light levels. More advanced controls can add astronomical timing that tracks sunrise and sunset, along with event-based programming for multiple lighting schedules, themes, or operating periods.

Choose a low-voltage landscape lighting transformer with an output that matches the fixtures, with 12 V to 15 V multi-tap options available to help manage voltage loss. Size the transformer’s capacity by adding the wattage of the connected fixtures, then allow room for additional loads or future expansion, with 300 W options suited to larger installations.

Landscape lighting transformers with advanced control functions can divide fixtures into zones, adjust light intensity by fixture or group, and manage RGBW color settings for different scenes or events. Some systems also connect with smart home platforms through wired or Wi-Fi control, allowing users to manage outdoor lighting alongside other connected devices.

For exterior or corrosive environments, look for a landscape lighting transformer with a heavy-gauge stainless steel enclosure, such as 304 stainless steel construction, to support long-term outdoor use. Installer-friendly features can include large terminal blocks for multiple conductors, conduit knockouts for cable routing, multi-tap 12 V to 15 V outputs to help manage voltage loss, and circuit breakers designed to reduce nuisance tripping.