Tuya WifiSwitch Module With/Without Neutral Mini Design 46*46*18mm mini body, working with most of amounting boxes, switches and wall sockets, not need to change original switches. With/Without Neutral With neutral or without neutral. Capacitor is included in the pacakge for no neutral version. No Hub Required Connect with wifi router directly, not need zigbee hub/gateway/bridge. App Remote Control Remote control lightings or appliances via Smart Life app from anywhere at anytime. Support 2-way Control Work with traditional 2 way control switch. Control 1 light from 2 position manually with your old switche Voice Control Compatible with Alexa and Google Home Aistant, control the appliances with simple voice command conviently. Timing Function Create schedules to automatically turn the home appliances or lightings on/off. Save energy and make your life organized. Group Control Set all of your smart switches in a group by Smart Life app. One-click to turn/off all of your appliances or lightings. Smart Scene Creating your own scene to trigger ON/OFF home appliances by departure mode, home mode, temperature, humidity, or other environmental conditions. Attention Neutral Version: should wotk with Neutral Wire. No Neutral Version: can work with or without Neutral Wire. The capacitor is included in the package.