Electronic astro timer for DIN rail, display with backlight, joystick programming or programming via an NFC-enabled smartphone with the Finder Toolbox app (Android and iOS). After installing the Finder app, an existing program can be read out or a new program can be programmed with maximum flexibility. To transfer the data, the timer is touched with the smartphone. In addition, time-controlled switching off or switching on and off within the astro time is possible. 1 changeover contact for 16 A, contact material AgSnO2, max. switching capacity at 230 V AC: AC1 4000 VA, AC 15 (230 V AC) 750 VA, lamp loads: incandescent and halogen lamps 2000 W, energy-saving lamps 400 W, LED (230 V AC) 400 W, LV halogen lamps or LED with electronic ballast 400 W, LV halogen lamps or LED with conventional ballast 800 W, fluorescent lamps with electronic ballast 1000 W, fluorescent lamps with conventional ballast 750 W, 6-year power reserve, automatic summer/winter time changeover, with astronomical data for sunrise and sunset. Time-controlled switching off or on and off within the astro time is also possible. Connection voltage: 230 V AC, 35 mm wide