The PTS Series Electronic Auto Shut-off Timer Switches provide a simple to use and simple to apply lighting control alternative to wall switch occupancy sensors. These elegant decorator style wall stations each provide six preset countdown timer selections as well as an on/off pushbutton. Features Finish: White Voltage: 120/277V Self-Contained Relay Interchangeable Hot & Load Wires - Impossible to Wire Backwards No Neutral Connection Required Self-Grounding Mounting Strap No Minimum Load Requirement Push-Button Programmable w/o Removing Switch Plate Fixed or Adjustable Preset Times Optional Audible Timeout Warning at 45, 30, and 15 sec? Optional Flicker Timeout Warning at 2 and 1 min Continous LED Flash for Last 30 sec of Button?™s Time Setting Green On/Off Switch Status LED Green LED Time Indicators Document Spec Sheet