Martin Jerry'S Smart Dimmer Switch Black | Touch Black Trailing, Fi, No Hub. Product Details LED Dimmer switch: This smart switch implements the Trailing Edge dimmer solution. It is better than other dimmer switches for LED lights. It will bring you a new dimmer experience with larger dimming range, smoother dimming process, and less flickering Dim Schedule: dim your lights in a period. Say from 6am to 8am, change the brightness from 1% to 80%. This can be one time or repeat schedule Other new features include: Changeable night light, Adjustable minimum brightness, separate WiFi button Smart switch dimmer: compatible with Alexa works with Google Home, Free App for remote control and home automation. This smart light switch dimmer is single pole (not 3 way), 2.4G wifi (not 5G), Neutral wire is required. Send wiring picutres if you need installation tech support. Service: Martin Jerry has a professional support team to solve your problems promptly. Email will be replied within 12hs. We offer 90-Day 100% refund, 1-year Quality Warranty Neutral wire is necessary. We provide on-line tech support for wiring. 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.