"This swing-arm spotlight is a perfect way to add dedicated task lighting in a reading nook, home office, living room, and more. Defined by its clean lines and modern flair, this spotlight is made from metal. Its adjustable arm lets you tailor the angle of light to suit your task. Inside the single glass shade, we recommend adding an Edison bulb (sold separately). The best part? It's also compatible with dimmer switches, so you can set the mood for both quick morning showers and leisurely baths before bed. And, it includes a switch.