Single output 150-watt transformer for outdoor landscape lighting. Featuring a photocell sensor for dusk to dawn operation and an integrated timer, allowing you to set the amount of time you wish the lights to stay on. As the sun goes down, the photocell turns the lights on, while the timer keeps them on for 4, 6 or 8 hours. You can override the photocell sensor and simply turn the transformer on and off. The 3-foot plug-in cord allows you to place the transformer in various locations. *Not for use with submersible fixtures.