Meross 2.4G Wifi Light Switch, 3 Way Smart Light Switch (Neutral Wire Required), Product Details Just Replace One Traditional 3 Way Switch: No need to replace two traditional 3 Way switches, just replace one traditional 3 Way switch and save 50% of the money. Note: this smart switch is only for non-dimmable lights. 2.4GHz Wi-Fi network support only. The Neutral Wire is Required: Easy to Install, standard wall plate size. The Meross app guides you through easy step-by-step installation. In addition, the Meross smart light switch is equipped with a ground wire (in green color) to improve safety. Single Pole or 3 Way: Replace your traditional 3 Way switch with a Meross 3 Way smart switch or use two 3 Way light switches to control the light from 2 locations, such as the top and bottom of a staircase or from house to garage, etc. Meross light switch fits your existing 1/2/3/4 gang standard size Decora/GFCI faceplate. Voice Control and APP Remote Control: The smart Wi-Fi switch works with Amazon Alexa, Echo, Echo Dot, Google Assistant, and Google Home, and turn on/off light with hands-free voice command. Using the Meross app to control your light from anywhere with the internet through your smartphone (iOS and Android). Automatic Schedule and Timer Settings: Create a schedule, timer, or countdown to turn on/off your light automatically based on your routines. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.