
Insteon Smart Dimmer Wall Switch
Score: 81/100
Kasa Smart HS220P3
Score: 79/100Rankings

The Insteon 2477D dimmer provides dual-band INSTEON mesh networking and supports up to 600 W incandescent and 150 W LED loads, with unlimited multi-way cross-linking. It requires a neutral wire and an Insteon hub for voice integration, and load capacity must be de-rated in multi-gang setups. Best suited for Insteon ecosystem owners who value reliable mesh control without Wi-Fi.

The Kasa HS220P3 provides hub-free Wi-Fi dimming with on-device buttons and broad voice-assistant support. It requires a neutral wire and is limited to 2.4 GHz networks and single-pole setups. Best for DIY homeowners seeking an easy, affordable smart dimmer.
| Attribute | ![]() | ![]() |
|---|---|---|
— | 120 Vbest | |
150 Wbest | 150 Wbest | |
600 Wbest | 300 W | |
| ↓ lower better | 0.102 kgbest | 0.15 kg |
50.8 mm | 128.5 mmbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Power(2) | ||
Operating Voltage (V) | 100-277 V | 120 V |
Maximum Incandescent Load (W) | 600 W | 300 W |
Lighting(1) | ||
Dimming Type | Standard | Leading Edge |
Features(1) | ||
Multi‑Way Support | true | false |
Connectivity(2) | ||
Hub Required | true | false |
Smart Home Compatibility | Alexa, Google Assistant | Amazon Alexa, Google Assistant, Microsoft Cortana |
General(1) | ||
Certifications | ETL #3017581 | RoHS, FCC, IC, UL |
Build & Design(2) | ||
Weight (kg) | 0.102 kg | 0.15 kg |
Height (mm) | 50.8 mm | 128.5 mm |

Products in the top-left offer the best value (high score, low price).

Professional reviewers and editors consistently commend the 2477D for its rock-solid dual-band INSTEON mesh that provides 100 % home coverage without a hub, fast button-link programming, and ultra-low standby power. They also acknowledge drawbacks such as the required neutral wire, load de-rating in multi-gang boxes, and the limited robustness of its X10 mode.
Everyday users praise the quick, screwdriver-only installation, reliable remote operation, and smooth dimming performance, often saying the device "just works" for whole-home scenes. Recurring complaints focus on the need for a neutral wire, confusing wiring in 3-way setups, occasional heat-sink tab removal, and incompatibility with non-dimmable bulbs.

“it just works”

“100% home coverage”

“fast linking”




Professional reviewers emphasize the HS220P3's ease of installation thanks to the guided app setup, its ability to quickly set appropriate lighting for different occasions, and the convenience of built-in dimmer buttons. The lack of a required hub and broad voice-assistant support are also highlighted as strong points.
Everyday users commonly praise the remote control capability, voice-assistant integration, and tactile dimmer buttons on the switch. Positive remarks focus on the simplicity of setup and the flexibility of scheduling, while the main frustrations revolve around the need for a neutral wire and the limitation to 2.4 GHz Wi-Fi.