The D1 smart dimmer switch is capable of remotely accessing the smart features to automate your house. You can set programmed schedules, voice control, control a group of devices, adjust light brightness and share the light to your family to control and dim together.Features:[Smart App & Voice Control] Compatible with eWeLink App/Alexa/Google Home and RM433 remote controller, the smart dimmer switch can turn on/off, brighten and dim the incandescent light bulbs and dimmable LED lights conveniently.[Sunrise & Sunset Mode] The newly added sunrise and sunset mode are available in smart scene to activate your light when sunsets and inactivate it when sunrises.[Timing Schedule] Amazingly, timing schedule and brightness setting can be enabled simultaneously in smart scene. It means that you can schedule the bed-room light to automatically turn on at 40% brightness at 7:00 AM and turn off at 100% brightness at 7:00 PM.[Applicable Lights] Support to dim incandescent light bulbs and dimmable LED light.[Fits 86 Type of Mounting Box] There is a base for the RM433 remote controller which is used to be directly replaced your light switch and installed into the 86 type mounting box, everything looks perfect. Besides, the dimmer can be installed into the EU and US type mounting box.Note:*The 433MHz Remote Controller and Base are not included, which are sold separately.*To avoid electric shocks, please consult a qualified professional for help when installing and repairing.Specifications:Brand: SONOFFCompatible with Android 4.1 or later, iOS 9.0 or later.Smart Dimmer SwitchModel: D1Color: WhiteA Pack of: 1 / 2 / 3 / 5 / 10 (optional)Material: PC V0Max. Current: 1AInput: 100-240V AC, 50/60HzOutput: 100-240V AC, 50/60HzIncandescent Bulb: 200WDimmable LED: 150WRF Band: 433.92MHzWi-Fi: IEEE 802.11 b/g/n 2.4GHzItem Size: 6.2*4.7*3.25cm / 2.44*1.85*1.27inItem Weight: 54g / 1.9ozPackage Size: 6.5*5.2*3.1cm / 2.55*2.04*1.22inPackage Weight: 62g / 2.18ozPacking List:1 * D1 Smart Dimmer Switch1 * User Manual(multilanguage)