Digital twilight switch/light control device, 1 channel, separate surface-mounted light sensor (IP 55) included, 1-99,000 lx, external input, width 2 HP, app programming possible, secure transmission via optional Bluetooth Low Energy OBELISK top3, maximum protection against manipulation, programs can only be transferred from the app to the clock if the Bluetooth OBELISK top3 is plugged into the clock, 600 watt LED power, 800 amps/200 microseconds inrush current, low standby power, operating hour counter, DuoFix plug-in terminals, power reserve, OBELISK interface for PC programming