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Shelly Dimmer 2 - WiFi Operated Dimmer The Shelly Dimmer 2 is a versatile WiFi-operated dimmer that works without a neutral line, making it compatible with most electrical installations worldwide. Easily control halogen lights, dimmable LEDs, and ferromagnetic transformers with full dimming functionality and remote access. Key Features No HUB required – connects directly to your WiFi network. Dimming without a neutral line – ideal for older homes or installations lacking a neutral wire. Turn ON/OFF or dim your lights to your preferred brightness. Internal temperature sensor for overheating protection. Compact design fits most standard electrical boxes and switches. Seamless integration with all other Shelly devices. Compatible with Android, iOS, Amazon Alexa, Google Assistant and supports MQTT, CoAP, and REST API for home automation. Supports Arduino projects for easy integration into custom automation setups. Specifications Power Power supply AC 110-230V ±10%, 50/60Hz Special Functions Device temperature protection Yes Overload protection Yes Power measurement Yes Dimming Yes Dimmable LED 50-200VA / 10W – 200W Incandescent and halogen light sources 10-220W Resistive-inductive loads ferromagnetic transformers 50-150VA Working without a neutral line Yes Features Colour changing No Predefined effects Yes Channels 1 Channel Operational temperature 0 to +35 °C Device power consumption Intelligent On/Off Yes Local and remote control Yes Sunrise/Sunset Yes Weekly Schedule Yes UL Listed option No Connectivity Wireless/WiFi Protocol 802.11 b/g/n Radiofrequency 2400 – 2500 MHz Radio signal power 1mW Range Up to 50 m outdoors and up to 30 m indoors (depending on building materials) Dimensions Size 42mm x 36mm x 14mm