Performance

If you want to terminate the service, please use destroy function. It will close all devices sockets, as well as main service socket itself.

yeelightService.destroy();

You can close connection of single device, by using destroy function on device. Example:

yeelightService.devices.subscribe((devices) => {
    devices.forEach(() => {
        const deviceName = device.name.value;
        const deviceConnected = device.connected.value;

        if (!deviceConnected) {
            return;
        }

        if (deviceName !== 'myDevice') {
            device.destroy();
        }

        // do something with device `myDevice` knowing, that every other device is disconnected from socket
    });
});