The Nanlux Lighting Pole-Operated Yoke and Fresnel Lens for Evoke 1200B is a fixture that is meant to be hung overhead on a pole or grid for all lighting purposes. Nanlux Lighting for Yoke and Fresnal Lens can pan and tilt from below with a long pole. An included glass Fresnel lens with 4-way barndoors mounts onto the yoke.