Shelly i4 Gen4

make every switch press do more

Turn your existing wall switches into smart scene controllers - without rewiring. Shelly i4 Gen4 is a compact 4‑input controller that fits behind your switches and turns simple button presses into powerful automations across your home.

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Key features:

✓ Matter + multi‑protocol: Works with Wi‑Fi, Zigbee, and Bluetooth for broad smart‑home compatibility.

✓ 4 digital inputs: Connect up to 4 existing switches/buttons and trigger scenes, lights, blinds, HVAC, and more.

✓ Multi-click actions: Up to 4 actions per input (single, double, triple & long press) for rich control from one switch.

✓ Easy local control: Embedded web UI for quick setup; no extra software required. Advanced automation: Scripting, MQTT, webhooks, HTTP API, and KNX net/IP for custom workflows.

✓ Network booster: Acts as a Zigbee/Wi‑Fi repeater to improve coverage.

✓ Compact Design: Fits in standard wall boxes; under 1W consumption.

Retrofit Smart Home Automation

Scenario: Homeowners want smart control without rewiring or replacing switches.

How it works: Shelly i4 Gen4 installs behind existing wall switches, turning them into scene controllers. Multi‑protocol connectivity enables complex automations and easy integration with other devices.

Remote Lighting and Appliance Control

Scenario: Users need convenient, secure, energy‑saving control of lights and appliances from anywhere.

How it works: Button presses on connected switches trigger automations for lights and appliances, controllable via app from any location, reducing energy waste and improving security.

Multi-Unit Lighting Management

Scenario: Property managers need centralized control of lighting and devices across multiple units.

How it works: Shelly i4 Gen4 enables centralized switching and monitoring via smart home platforms, supporting scheduling, fault detection, and integration to cut operational overhead and boost tenant satisfaction.

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Shelly Europe Ltd 51 Cherni Vrah Blvd. Office X, Building 3, Floor 2-3 Sofia, 1407