Moes Star Ring ZS-SR-EU3-LN Zigbee wall switch, 3-gang, neutral required, grey

How many separate load circuits the switch controls independently — usually the number of keys (1, 2 or 3 groups of lights). Scene-only keys without their own relay are not counted.

How you operate it by hand: pressing a key with travel and a click, touching glass with no travel, swiping, turning a knob, or using a screen with menus.

How the panel lights up: just an on/off indicator, a soft backlight to find the keys in the dark, an indicator of the current brightness level, or decorative lighting. Adjusting or switching off the backlight is in the note if the maker describes it.

Whether the wall box needs a neutral wire. Older wiring often brings only the live wire to the switch; then pick a model that works without N.

Which wall box the switch is designed for, per its documentation. 86 × 86 mm plates fix with screws 60 mm apart, as on a round European box; check that the housing depth fits your box.

The wireless link or network the device uses. Wi-Fi connects straight to the router; Zigbee, Thread and Bluetooth Mesh work through a hub or gateway.

Whether the device needs a separate hub, gateway or coordinator to work in a smart home. If so, it is sold separately unless stated otherwise.

Whether the device supports the Matter standard, directly or through a bridge. Matter lets you add it to Apple Home, Google Home, Alexa and Home Assistant.

How the device connects to Home Assistant: a built-in integration, a Zigbee coordinator, Matter or the maker’s cloud integration.

The maker’s app used to set up and control the device.

The coordinator's maximum radio output. Higher power gives a steadier link to distant devices, but range in a home depends more on walls and the number of routers in the network.

The highest current one key's relay handles with a resistive load. For LED lamps check the separate “LED load” figure, which is usually noticeably lower.

Power of incandescent lamps, heaters and other resistive loads per channel at 220–240 V. For LEDs, motors and power supplies the permitted power is lower.

Current the device handles across all channels at once. On multi-channel models the total is often lower than per-channel current × number of channels.

The supply voltage (and current, if stated) as the maker gives it. It must match your mains or adapter.

Where the device gets its power: 230 V mains, an adapter, USB, batteries or a built-in battery.

Sensors inside the panel. A proximity sensor wakes the screen as you approach; a light sensor adjusts brightness; built-in temperature and humidity sensors can be used in automations.

The housing colour of this model. Other colours in the same series are separate products.

The air temperature range the device is rated for. The lower limit matters outdoors, on balconies and in unheated rooms.

The warranty period the maker states. Confirm warranty terms in Moldova with the seller.