ET8000 Series 7-day astronomic time switch features independent 7-day programming to provide flexibility for applications where load switching differs each day of the week. These time switches provide dependable and uncomplicated performance, plus to-the-minute programming for accurate load control and reduced energy costs. Up to 28 ON/28 OFF (56 events) can be preset to automatically repeat. Program can be repeated on a weekly basis. Multi-volt operation from 120-277 VAC, 50/60 Hz. To-the-minute programming for accurate load control and reduced energy costs. Astronomic feature provides sunset ON and sunrise OFF settings to eliminate the need for separate photo control devices. Astronomic programming can be combined with independent programs to provide a sunset ON and timed OFF program. 2-circuit models are field (jumper) configurable for: 2 independent outputs, DPST output, or 1 channel ON pulse OFF pulse output. Up to 28 ON/28 OFF setpoints or events and 4 astronomic events. Dusk/Dawn astronomic events can be distributed throughout the days of the week. Automatic Daylight Saving Time (DST) ON/OFF adjustment (factory enabled). Non-volatile EEPROM memory protects programming indefinitely. Temporary override or permanent manual override available via control buttons.