IC Astro SMART astronomic programmable twilight switch Width of 45mm (5 modules of 9mm) To start and stop an electric load according to sunrise and sunset times No need to use a brightness sensor as sunrise and sunset times are calculated automatically according to geographical location Integrated time switch with swiching cycle is 7 days (weekly). 84 switching operations Savings on mains cut off with battery reserve: 10 years Manual and remote overrides are possible 1 channel output Programming could be done also with memory key and PC software User manual holder on product left side allows to reach document easily