The top3 app can be used to simply, quickly and conveniently program time switch programs for top3 digital time switches from Theben on a smartphone or tablet. The programs are transferred in a tamper-proof way to the top3 time switch via Bluetooth OBELISK top3 (a Bluetooth Low Energy dongle).

The new digital time switches of the top3 series replace the proven and multi-million selling top2 devices and reach the next milestone in terms of performance, energy efficiency and programmability, as well as functionality, ease of use and reliability. Theben SELEKTA top3 astronomical time switches can be used for precise switching of connected loads based on sunrise and sunset.