Kasa Smart HS210 3‑Way Light Switch Kit, White — Neutral Required, App & Voice Control

The Kasa Smart HS210 3‑Way Switch Kit replaces traditional three‑way light switches with two smart switches that require a neutral wire and offer app, schedule, and voice control.

The HS210 kit from Kasa Smart contains a pair of cooperated smart switches engineered to swap into locations where two separate switches control the same light (for example, top and bottom of stairs or long hallways). Designed for homes with a neutral conductor and 2.4 GHz Wi‑Fi, the HS210 eliminates the need to decipher master/auxilary modes — the app walks you through installation, network setup, and pairing so the two switches work together seamlessly.

How do I install the HS210 in a 3‑way circuit?

Installation is guided inside the Kasa (or Tapo) app and is intended for users with basic electrical familiarity; if you’re unsure about wiring, consult a licensed electrician. The kit expects a neutral wire in the switch box and connects to your 2.4 GHz Wi‑Fi network for cloud and remote control.

• Follow step‑by‑step diagrams in the app for correct traveler and common connections.
• Confirm a neutral conductor is present before purchase; the switch will not work without it.
• Power off the breaker, verify wiring, and recheck connections before restoring power.

What smart controls and automations can I use?

The HS210 supports on/off commands from the Kasa/Tapo app, scheduling, countdown timers, and remote access so you can run lights from anywhere. It also integrates with voice assistants for hands‑free control and offers an Away Mode to simulate occupancy when you’re not home.

• Create daily schedules or single timers through the app to automate lighting.
• Enable Away Mode to randomly toggle lights on/off for enhanced home security.
• Pair with Amazon Alexa or Google Assistant for voice commands and routines.

Will the HS210 work as a single‑pole switch too?

Yes — each HS210 unit can be used in either a single‑pole (one location) or three‑way (two locations) configuration, giving flexibility for replacing a standard switch or upgrading paired locations. The app will prompt the correct wiring method during setup based on your selection.

• Use one HS210 as a single switch to control lights from one location.
• Install both units together to replace a traditional three‑way pair without extra wiring complexity.
• App instructions clarify traveler/common/neutral connections for either use case.

What compatibility and technical requirements should I check?

The HS210 runs on 2.4 GHz Wi‑Fi and needs a smartphone with Android 5.0+ or iOS 10+ to complete setup. Kasa is UL certified and developed in Silicon Valley, but updating firmware periodically in the app helps ensure best performance and security.

• Works on IEEE 802.11 b/g/n 2.4 GHz networks (does not support 5 GHz).
• Requires Android 5.0 or later, or iOS 10.0 or later for the Kasa/Tapo app.
• UL safety certification; consult an electrician if your wiring lacks neutral or is unfamiliar.

Who is this for: The Kasa Smart HS210 is aimed at homeowners or renters with a neutral wire and 2.4 GHz Wi‑Fi who want to convert paired light switches into smart, scheduleable, and voice‑controlled switches. It’s especially useful for multi‑story homes, staircases, long hallways, or any location where two switches operate the same fixture and you want app control without complex rewiring or configuring master/auxiliary modes.