Dusk to dawn lights — also called barn lights or yard lights — switch themselves on at nightfall and off at sunrise using a built-in photocell. No timer, no switch, no wiring beyond the supply.Available 30W, 50W and 70W, suited to driveways, yards, barns, workshops, farm buildings and rural security lighting. The mounting arm fits a standard wall bracket or pole, and the units are rated for wet locations.These are the simplest fixtures we stock to install and the most common choice for residential and agricultural customers around the Dallas–Fort Worth area.