Smart Dimmer Switch By Martin Jerry | Smartlife App, Mains Dimming Only, Product Details Dimmer Light Switch: Mains Dimming ONLY. NOT support 0-10V, PWM, Dila, D-Max, Support INC bulb (400W), Mains Dimming LED Bulb (150W) and CFL bulb (150W) ; Turn On/Off, Adjust the Brightness Home Automation System: Compatible with Alexa and Google Home Voice Control (Smart Life Skills), Free App Remote Control Anywhere (Smart Life App in iOS and Android), IFTTT, No Hub is required for Wi-Fi Dimmer Switch, , Schedule, Share Alexa Dimmer Switches for Family Members Installation Notice: Neutral Line is required, Single-Pole Use (Not Support 3-way), 2.4G Wi-Fi ONLY (Not Support 5G Wi Fi), Bubls support Mains Dimming (Send us your bulbs' model to check if you are not sure) Advantage: Over Temperature Protection, Brightness Memory, Soft On Soft Off Lighting for Comfortable Visual Effect, Physical Button Better Responsiveness Warranty: Martin Jerry Promises 90-Day 100% refund, 1-year Quality Warranty for it?s Smart Home Devices on Amazon, like WiFi Smart Plug, Plugs, Smart Switch, Wall Switches, Smart Bulb, Smart LED Controller, Homekit smart plugs 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.