Smart Dimmer Switch By Martin Jerry | Smartlife App, Mains Dimming Only, Product Features 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 Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!