Kasa Smart Dimmer Switch HS220 — Single‑Pole, Needs Neutral Wire, Wi‑Fi & Voice Control

The Kasa Smart Dimmer Switch HS220 is a Wi‑Fi enabled, single‑pole wall dimmer that replaces a standard switch to give you app and voice control over your lighting, but requires a neutral wire and a 2.4 GHz home network for installation.

Designed to fit into a standard electrical box, the HS220 adds smooth brightness control, remote access, and schedule automation to compatible fixtures. It works with the Kasa app and major voice assistants so you can dim, turn on, or turn off lights from your phone or by voice. This model is intended for single‑pole installations only and needs a neutral conductor in the switch box; if your home wiring differs, consult a licensed electrician before attempting installation.

How will the HS220 change how I use my lights?

The HS220 turns a conventional switch into a connected dimmer so you can adjust brightness levels from the Kasa app, with voice commands, or with the physical paddle. It supports gentle fade‑offs to make lighting transitions less abrupt and offers timers and schedules for automated control while you’re home or away.

• App control from anywhere using a 2.4 GHz Wi‑Fi network
• Voice control with Amazon Alexa and Google Assistant
• Gentle Off fades lights instead of cutting power instantly
• Advanced schedules, countdown timers, and Away mode

What are the wiring and compatibility requirements?

Installation requires a neutral wire at the switch location and the HS220 only supports single‑pole circuits (one switch controlling one lighting load). It connects to your home via a secured 2.4 GHz Wi‑Fi network; 5 GHz networks are not supported. If you aren’t confident working with house wiring, have a qualified electrician complete the install.

• Must have a neutral conductor present in the switch box
• Single‑pole circuits only — not for 3‑way/multiway use
• 2.4 GHz Wi‑Fi required for app and cloud features
• Compatible bulbs and fixtures should support dimming

How do I control and customize lighting scenes with the HS220?

The Kasa app provides step‑by‑step setup and an interface for creating scenes, timers, and schedules to fit daily routines. You can set brightness levels for different times of day, program Away mode to vary on/off behavior, and use single‑ or double‑click actions for quick fades or presets.

• Create schedules and timers to automate on/off and dim levels
• Use Away mode to randomize lights for enhanced presence simulation
• Assign single/double click actions for instant scenes or fades
• Manage devices remotely and group switches in the app

Will the HS220 work with my smart home setup?

The HS220 integrates with popular voice assistants for hands‑free control and sits in the Kasa ecosystem so you can pair it with other Kasa devices. It requires the Kasa app for full setup and cloud features, and functions best on a reliable 2.4 GHz network; third‑party hub requirements are not necessary.

• Works with Amazon Alexa and Google Assistant for voice control
• Standalone Wi‑Fi device — no separate hub required
• Kasa app for Android and iOS provides full configuration and automation
• Groups with other Kasa devices for coordinated routines

Who is this for: The Kasa Smart Dimmer HS220 is ideal for homeowners or renters who want smarter, quieter lighting control at a single location and who have a neutral wire available in the switch box. Choose this dimmer if you want app and voice control, scheduling, and smooth fade features without adding a hub — but if your switch location lacks a neutral or you need three‑way switching, look for an alternate model or professional electrical help.