AE series project clocks have 120VAC 60Hz power with power cord or plug-in power module (other power optional). Built-in controls for setting and controlling all clock/timer functions (remote switch panels optional). Black anodized aluminum enclosures for indoor installations. These clocks shows, Days, Hours, Minutes and Seconds. Alternately they can be used as Julian Clocks showing the day of the year in 24 hour format or as a project completion clock showing DDD HH MM SS until the project completion date. AE series large digital display Countdown timer with nine bright red diffused bar segment LED digits, 2.3-inch height. Approximate dimensions, 30.0" x 6.1" x 3.5".