SONOFF D1 Smart Dimmer Switch


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【Stepless Dimmable】Set the dimming range you want and adjust the light steplessly at any time. Support to dim incandescent light bulbs and dimmable LED light.
【Open Device REST API】Connect and control the D1 with your existing home automation system like Home Assistant via LAN. Set up scenarios with different light intensities.
【Sunrise & Sunset Scenes】Keep track of the sun rise and set time of your location, so you can create a scene that activates at a fixed time, when the sun rises or when the sun sets.
【RF 433MHz Remote Control】Even easier dimming at hand, turn the light down casually with the RF 433MHz remote controller RM433 at the thrilling movie night, or on/off the light, enjoy an immersing moment.
【Adjust Party Ambience with Your Voice】Turn up/down the brightness level light with your voice command for a great atmosphere via Amazon Alexa & Google Assistant.

Note: the RM433 remote controller and base are not included.

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Due to popular demand, SONOFF eventually releases a new D1 smart dimmer switch. It excellently improves the lighting system in your home with different brightness levels. Turn on/off, brighten and dim the incandescent light bulbs and dimmable LED lights through the RM433 remote controller, eWeLink APP, Alexa or Google Home. The newly added sunrise and sunset mode are available in smart scene to activate your light when sunsets and inactivate it when sunrises. 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. 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. For the protocol document and the code for the DIY Mode tool (updating), please go to


Additional information


Product Type

Smart Dimmer Switch

Max. current



100-240V AC 50Hz/60Hz


100-240V AC 50Hz/60Hz

Incandescent bulb


Dimmable LED


RF Band



IEEE 802.11 b/g/n 2.4GHz

Enclosure Material



62X47X32.5 mm

Certified Compliance


Works With


Customer Reviews

Based on 13 reviews
paul kruger
Great DIY smart dimmer

Works great, very small little module, fits inside a standard box easily.

Jonathan Poulin

Produit vraiment simple d'utilisation et très petit. Peux être mis dans une boite électrique existante ou même dans le plafond. Plus besoin de passer de fil jusqu'à un commutateur mural!

Attila Batori
This is the best for this price!

This is the cheapest solution to control and dim lights with mobile app, alexa and google home.

Nick Whitworth
Great dimmer at a great price.

Great dimmer. I use it with LED bulbs and Home Assistant.

Horrible. Ghost switches. Known issue. No help from ITEAD.

They know about this ghost switching issue.
It is easy to find many others with this issue.
ITEAD offers to sell you more defective junk.
DO NOT BUY anything from this company if you hope to get after sale service.

Hi, we already sent you an email about the solution. If we confirm it is a device problem, we would like to send you a replacement. Please don't worry about it. For the D1 automatically on and off, please try to use the RM433 remote to clear the RF code first.

It's a dimmer.

It's a dimmer.

Works as well

Item was easy to install. I added it in the overhead light, between the switch and the light.
Dimming feature is great.
The ability to control via app and set schedules is awesome

Enrique Cazares

I have two D1 dimmer switch and suddenly start to turno on after some Minutes I turned off

Ankit .
A sub standard dimmer with ghost switching.

I bought this dimmer almost a week ago, and there seems to be two major issues with it.
First, it happens to automatically turn on by itself(just to add more detail, I haven't set up any trigger,schedule or scene), yet it randomly turns on or increase the brightness to 100%. I looked on internet and found that this problem is here from last 2-3years.
Second, the dimming range is pretty low, after 60% there seems to be a negligible change in the light, and anything below 10% will cause light to flicker(previously I was using a normal dimmer which was working pretty well, whereas with sonoff is having quite a bit trouble here)

I can still manage to live with second issue but the first issue is just ridiculous, it seems like sonoff is absolutely not bothered with what crap they are launching and not even want to address the age old problems in its dimmers.

Gilbert Chadefaux

Aucun problème fonctionne parfaitement , aucun scintillement avec ampoule Led dimmable

SONOFF D1 Smart Dimmer Switch
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