
Insteon Smart Dimmer Wall Switch
Score: 81/100
Kasa Smart 3 Way Dimmer Switch
Score: 81/100Rankings

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 3-Way Dimmer Kit adds Matter-enabled, hub-free Wi-Fi control and true 3-way capability to standard switches. It still needs a neutral wire and uses only 2.4 GHz Wi-Fi. Suited for homes that need multi-location control without a hub.
| Attribute | ![]() | ![]() |
|---|---|---|
— | 120 Vbest | |
150 Wbest | 150 Wbest | |
600 Wbest | 300 W | |
| ↓ lower better | 0.102 kgbest | 0.19 kg |
50.8 mmbest | 45 mm |
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 |
Connectivity(2) | ||
Hub Required | true | false |
Smart Home Compatibility | Alexa, Google Assistant | Alexa, Google Assistant, Siri, Matter |
General(2) | ||
Certifications | ETL #3017581 | RoHS, FCC, IC, UL, ETL |
Operating Temperature (°C) | -40 to 40 °C | 0-40 °C |
Build & Design(2) | ||
Weight (kg) | 0.102 kg | 0.19 kg |
Height (mm) | 50.8 mm | 45 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 sources such as B&H and TP-Link documentation praise the Kasa dimmer for its easy installation, smooth fade functionality, and robust app and voice control features. The lack of a required hub and Matter certification are noted as strong points for integration into existing smart-home setups.
While direct user reviews are absent, the available information suggests consumers appreciate the convenience of app-driven scheduling, the gentle fade transitions, and the ability to control lights via voice assistants. Common concerns revolve around the need for a neutral wire, single-pole limitation, and compatibility with certain bulbs.