The Wattstopper InteliSwitch TS-400-24-B is a 24VAC digital time switch in black, designed to automatically turn off lighting loads after a user-preset interval in commercial and institutional environments. Pushbutton operation allows simple on-demand time setting without programming tools, reducing energy waste in spaces such as conference rooms, corridors, and utility areas. Compatible with 24VAC control systems and finished in black to coordinate with standard decorator wallplates.