Aqara E1 Smart Wall Switch (With Neutral, 3-Key)

The Aqara E1 Smart Wall Switch (With Neutral, 3-Key) is the triple-rocker version of Aqara's E1 wall-switch family. It is designed for installations where a neutral wire is available and provides three physical wall-switch buttons in a single smart-switch unit.

Aqara identifies this exact E1 model as lumi.switch.acn040. Xiaomi's official Mi Home product catalog lists the same device model as integrated with Mi Home and states that a gateway is required. With a compatible gateway in the system, the switch can participate in the Mi Home smart-home ecosystem while retaining normal physical control from the wall.

This combination is useful where several wall controls are needed in one location and app-based smart-home control is also desired. The gateway is part of the connected setup: the switch is the installed control device, while Mi Home connectivity depends on the compatible gateway.

This catalog entry is specifically for the with-neutral, three-key E1 configuration. The marketplace source contains white and gray finish variants of this same configuration, and both belong to this single canonical product.

Other E1 versions with a different number of buttons or without a neutral wire are separate products. They should not be treated as interchangeable because their wiring requirements and physical control layouts differ.

Before installation, confirm that the available wall wiring includes the neutral connection required by this model and that a compatible gateway is present if Mi Home integration is part of the intended setup.