The Somfy 1870904 wall switch, also known as the Chronis Uno, is manufactured by Somfy. This single-piece wall switch features reliable manual control for automated blinds and shutters. It is typically used in residential or commercial settings to facilitate easy management of window coverings. https://elecena.pl/product/28705779/somfy-1870904-chronis-uno-wall-switch-4-buttons-timeless-design 2025-05-16 https://elecena.pl/product/28705779/somfy-1870904-chronis-uno-wall-switch-4-buttons-timeless-design 2026-09-11