[Universal 2-in-1 Wiring Design] This MOES ZigBee smart switch features a hybrid design that works in both "No Neutral" and "With Neutral" environments. It’s the perfect solution for older homes without a neutral wire or modern homes with one. No capacitor is required for installation, ensuring a noise-free and flicker-free lighting experience [Multi-control Association - Neutral Wire Required] PLEASE NOTE: To use the Multi-control Association feature (controlling one light from multiple switches via the App), the Neutral Wire MUST be connected to the switch. If your home has no neutral wire, the switch will function perfectly as a standard single-pole smart switch but will not support the multi-control link [No Capacitor & No Noise] Advanced internal engineering eliminates the need for an external capacitor. Even in "No Neutral" mode, you won't experience the common "electric current noise" or light flickering issues found in older smart switches. This ensures a stable and premium user experience [Tuya ZigBee Hub & Voice Control] Requires a Tuya ZigBee Hub for full smart functionality (sold separately). Once paired, you can control your lights via the Smart Life/Tuya App or using voice commands through Alexa, Google Home, or Yandex Alice. Perfect for hands-free smart home management [Timers and Power-on State] Create custom schedules, timers (1/5/30 mins, 1 hour, etc.), and countdowns to fit your lifestyle. The "Relay Status" feature allows you to set the switch to remember its last ON/OFF state or default to a specific setting after a power cut, providing added convenience and energy savings