Set the mood for dinner, work or movie time. The Wemo WiFi Smart Dimmer is the smartest way to create the perfect ambiance. Choose your desired level of brightness and set schedules and timers right from your phone or tablet so your lights do what you want when you want from anywhere. WeMo dimmer switch seamlessly replaces your existing dimmer switch and works with any one-way connection light. Easy install, perfect for diyers. Neutral wire required. Not recommended for use with a metal faceplate. Download the free app, and control your lights from your phone or tablet. No Hub or subscription required.Wi-Fi Technology : 2.4GHz 802.11b/g/n. Minimum System Requirements-Android 4.4 or higher,iOS 9 or higher, Neutral wire required.Replaces single pole switch.Not compatible with 3-way (multi-location control) switches. Works with your existing single/double/multi-switch rocker-style plates.Not designed to work with metal face plates.Voltage Rating: 120 VAC; Max Wattage: 400 W Incandescent single-gang, 250 W Incandescent multi-gang, 150 W CFL/LED single or multi-gang. Control and dim lights from anywhere. Only needs Wi-Fi. No Hub or subscription required. Control WeMo dimmer from the wall, the WeMo app, or with your voice when paired with Amazon Alexa, the Google Assistant and Apple homekit. Syncs with your schedule. Easily set schedules and timers so your lights do what you want when you want. You can even sync lights to adjust with the sunset and sunrise Optimize your lights: WeMo dimmer will calibrate to the bulbs you’re using to provide the maximum amount of dimming range with no flickering Night mode. Set your WeMo dimmer to your desired low light level and protect your eyes from bright lights Note: Works with any 1-way connection light switch (not compatible with 3-way) and requires a neutral wire Note: Refer the user manual before use which is highly recommended