Acti9 IC Astro 1C-SMART Programmable Twilight Switch Application Note

This document presents a solution for optimizing hotel car park lighting using the Acti9 IC Astro 1C-SMART programmable astronomical twilight switch, which automatically controls lighting based on sunrise and sunset times. It highlights benefits such as enhanced security, energy cost control, automatic summer/winter time adjustment, and simplified installation without a brightness detector.