The m-e modern-electronics KTB-1 S Bell panel includes a nameplate and operates on 12 V/1 A. This silver doorbell button is an ideal choice for residential and commercial buildings, providing reliable performance. It is typically used as a bell panel in entryway systems. https://elecena.pl/product/28918383/m-e-modern-electronics-ktb-1-s-bell-panel-silver-12v-light-sensor 2025-06-07 https://elecena.pl/product/28918383/m-e-modern-electronics-ktb-1-s-bell-panel-silver-12v-light-sensor 2026-08-23