"The FX Luminaire EXPC is a plug in photocell built to deliver hands free dusk to dawn control for low voltage landscape lighting systems. Designed specifically for FX EX series transformers, this accessory simplifies automation by turning lights on at sunset and off at sunrise without timers or external devices. Perfect for contractors looking to streamline installations, the EXPC offers fast integration with no programming required. It installs directly into compatible transformer housings and immediately responds to ambient light levels, making it a simple and reliable upgrade for both new builds and retrofits. Its low profile design preserves enclosure space while adding dependable functionality that reduces energy use and eliminates manual switching. For installers who value clean results and low maintenance performance, the EXPC provides professional grade control in a plug and play format that just works."