... Smart touch screen switch fpr hotel with door bell, clean, do not disturb, wait functions Specifications1. Multicolor combination, Modular design 2. Delay ... / kWh = 7117.5USD. Electrical Safety of hotel ReservationIf the guests do not turn off the electrical equipment before going out, and the ... ) Smart touch screen switch fpr hotel with door bell, clean, do not disturb, wait functions