1. WIFI Off Switch Module 2. App Mobile Control, Control The Switch Anytime And Anywhere Through Mobile App 3. Voice Control, Just One Voice To Control The Brightness Of Your Lights 4. Timing or Countdown or Schedule, Maximize The Intelligent Diy Of Your 5. Stepless Dimming, Dim The Light Brightness From 0percent To 100percent To Adapt To Different Scenes: Sleeping, Working, Watching , Parties, Etc. Type:WIFI Dimming Module Working Temperature:-10-40 Voltage:AC100-240V 50 or 60HZ Protocol:WIFI IEEE 802.11 B or G Operating Range:Less than 100m Working Frequency:2.412Ghz-2.484Ghz Protection Level:IP20 Maximum Load:1 Gang (AC230V 150W) (AC120V 80W) Note:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Colour:As Shown Material:ABS Package Contents: 1 x Dimmer Switch Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.