NodOn CWS-4-1-00 Wireless Wall Switch

Zigbee Role: Transmitter

Compatibility: Home Assistant, Jeedom, Zigbee2MQTT

Radio Protocol: Zigbee Green Power (Mechanical Energy Switch)

Operating Frequency Band: 2.4 GHz IEEE 802.15.4

Supported Radio Channels: Channel 11, 15, 20, and 25

Power Source: Built-in Kinetic Energy Harvester (Piezoelectric)

Operating Temperature: -20 / +65°C

IP Rating: IP20

Profile: PTM 216Z

Use: Indoor

Part Number: CWS-4-1-00

The NodOn CWS-4-1-00 wireless wall switch is specifically designed to solve one of the major headaches in home automation: the absence of a neutral wire in flush-mounted boxes. No wiring, no batteries, and, crucially, no physical power interruption. Thanks to Zigbee Green Power technology and a mechanical energy harvesting system, each press of the button generates just enough energy to transmit a command, without external power.

Pairing requires a bit of precision, especially regarding Zigbee channel selection, but once configured, its stability is outstanding. The button has a firm click, perhaps a little too firm, but that's the trade-off for battery-free operation. Build quality is robust, typical of NodOn products, and while the price might be a bit steep, its complete lack of maintenance justifies the investment in the long term. In short, it's a neat, dependable, and well-designed solution for anyone looking to automate their lighting without messy DIY solutions.