Wi-Fi Smart Shelly 1 Gen3 is a single-channel relay that allows you to turn on, off and control electrical circuits remotely via a phone, computer or other type of device. Maximum load 16A / 240VAC. Uses Wi-Fi 802.11 b/g/n, Bluetooth.
Wi-Fi Smart Shelly Dimmer 2, 262184, is an intelligent dimmer for build-in in wall, designed to control and dimming LED lighting remotely with remote access (via the Internet) or via cloud service via WiFi, phone, computer or another device that supports HTTP and/or UDP. It can control up to one electrical circuit, alone or as an accessory for smart home control. Maximum load halogen bulbs -220W, LED - 200W, transformers 150VA. Minimum consumption 10W. For the little ones you need Shelly Bypass. It uses the WiFi 802.11 b/g/n radio protocol with a frequency of 2400-2500 MHz.