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SONOFF D1 Smart Dimmer Switch is a Wireless LED Light Dimmer Switch that can easily turn on/off,  brighten and dim the connected dimmable LED lights - as well as via Alexa and Google Assistant voice-activated devices

SONOFF D1 Smart Dimmer Switch


Availability: In stock

From: $10.99

To: $19.79

Price as configured: $0.00

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.

1 x D1 Smart Dimmer Switch   +$10.99

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Price as configured: $0.00


Product Description




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 http://developers.sonoff.tech/sonoff-diy-mode-api-protocol.html


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



dimmer remote controller


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Smart Home Product List

Product NameFeatureLAN ControlInput VoltageMax CurrentMax PowerWireless FrequencyWikiShopping
Sonoff Basic Wireless control switch Yes 90~250V AC 10A 2200W 2.4Ghz Click Click
Sonoff RF WiFi & RF smart switch Yes 90~250V AC 10A 2200W 2.4Ghz,433MHz Click Click
Sonoff SV Low voltage Input Yes 5~24V DC 10A 240W  2.4Ghz Click Click
Sonoff TH10/TH16 Monitor temp.&hum. NO 90~250V AC 10A/15A



2.4Ghz Click Click
 Sonoff Dual Remote control 2 devices NO 90~250V AC 16A 3500W  2.4Ghz Click  Click 
 Sonoff Pow Report power &power usage NO 90~250V AC 15A 3500W  2.4Ghz Click  Click 
 Sonoff Pow R2 Upgraded power monitoring switch NO 90~250V AC 15A 3500W  2.4Ghz NO Click 
 Sonoff G1 GPRS/GSM smart switch NO 90~250V AC 16A 3500W  2.4Ghz Click  Click 
Sonoff 4CH (R2) 4 Gang WiFi wireless switch NO 90~250V AC 10A 2200W  2.4Ghz Click  Click 
Sonoff 4CH Pro (R2) 4 Gang WiFi & RF 3 working mode switch NO 90~250V AC/ 5~24V DC 10A/Gang 2200W/gang  2.4Ghz, 433MHz Click  Click 
Sonoff LED App control dimming LED NO 180~265V AC 0.6A 42W  2.4Ghz NO Click 
Sonoff Touch WiFi wall touch switch Yes 90~250V AC 2A 400W  2.4Ghz NO Click 
Sonoff T1 UK WiFi RF wall touch switch Yes(1 gang only) 90~250V AC 2A/gang 600W/gang 2.4Ghz,433MHz NO Click 
Sonoff T1 EU WiFi RF wall touch switch Yes(1 gang only) 90~250V AC 2A/gang 600W/gang 2.4Ghz,433MHz NO Click 
Sonoff T1 US WiFi RF wall touch switch Yes(1 gang only) 90~250V AC 2A/gang 600W/gang 2.4Ghz,315MHz NO Click 
Sonoff Slampher Wireless control light holder Yes 90~260V AC 2A 200W 2.4Ghz,433MHz Click Click
Sonoff B1 Dimmable White&Color Bulb NO 90~250V AC 2A 6W 2.4Ghz NO Click
Sonoff S20 EU/US/UK/AU/CN Smart socket Yes 90~250V AC 10A 2200W 2.4Ghz Click Click
Sonoff S26 EU/US/UK/AU/CN Smart Plug Yes 90~250V AC 10A 2200W 2.4Ghz NO Click
Sonoff S30 US Smart socket Yes 110~125V AC 10A - 2.4Ghz NO Click
Sonoff S31 US smart plug NO 120V AC 60HZ 16A - 2.4Ghz NO Click
Sonoff iFan 02 LED celing fan driver NO 90~250V AC Fan-2A/Light-5A



2.4Ghz NO Click
1 Chnl Inching/self-locking Switch Access control switch Yes 5V/12V DC 10A 50/120W 2.4Ghz NO Click
Sonoff SC Monitor indoor environment NO USB 5V 80mA 0.4W 2.4Ghz Click Click
Sonoff RF Bridge 433  Remote control 433MHz RF devices NO USB 5V - - 2.4Ghz,433MHz Click Click
Sonoff L1 Smart LED Light Strip  Remote control LED Light Strip NO 12V DC - - 2.4Ghz NO Click
SONOFF BASICR3  WiFi DIY Smart Switch Yes AC 100-240V 10A 2200W 2.4Ghz NO Click
SONOFF RFR3  WiFi DIY Smart RF Control Switch Yes AC 100-240V 10A 2200W 2.4Ghz, 433MHz NO Click
SONOFF TX Series UK EU US  WiFi Smart Wall Switches Yes AC 100-240V 50/60Hz 2A Max 2A/Gang, 6A/Total Max / 2.4Ghz, 433MHz NO Click
SONOFF iFan03  Smart Ceiling Fan & Light Controller No AC100-240V 50/60Hz 5A / / 2.4Ghz, 433MHz NO Click
SONOFF MINI  Two Way Smart Switch Yes AC 100-240V 50/60Hz 10A Max / / 2.4Ghz NO Click
SONOFF SlampherR2  Smart Lamp Holder Yes AC 100-240V 50/60Hz / / 2.4Ghz, 433MHz NO Click
SONOFF S55  Smart Waterproof Socket Yes AC 100-240V 50/60Hz 10A-16A / / 2.4Ghz NO Click
SONOFF T4EU1C  Smart Single Wire Wall Switch Yes AC 180-240V 50Hz 2A AC 180-240V 50Hz 2A / 2.4Ghz NO Click
SONOFF IW100/IW101  US Wi-Fi Smart Power Monitoring Wall Socket & Switch Yes 120V AC 60Hz 15A 1800W 2.4Ghz NO Click
SONOFF BASICZBR3  Zigbee DIY Smart Switch /

AC 100-240V 50/60Hz 10A

AC 100-240V 50/60Hz 10A

/ 2.4Ghz NO Click

Wi-Fi Wireless IP Security Camera


5V 1A


/ 2.4Ghz NO Click

Wi-Fi Smart Dimmer Switch


100 - 240V AC 50/60hz


/ 2.4Ghz, 433.92MHZ NO Click
SONOFF S31 Lite Zb Smart Plug  

Zigbee Smart Plug US Type


120V AC 60HZ 15A


/ 2.4Ghz NO Click
SONOFF Micro  

5V Wireless USB Smart Adaptor


Max.DC 5V/2.5A (USB Type - A male)


/ 2.4Ghz NO Click

Smart Home Zigbee Bridge




/ 2.4Ghz, Zigbee 3.0 NO Click
SONOFF DW2  Wi-Fi Wireless Door/Window Sensor /

DC3V (2 x 1.5V battery)

≤ 40 μA

/ 2.4Ghz NO Click

For technical support, please go to Itead smart home forum

Additional Information

Additional Information

Weight 0 g
Discontinued No
Link Wiki No
Works With Google Nest No
Works With Amazon Alexa Yes
Works With Google Assistant Yes
EWeLink Support Yes


Customer Reviews

Works a treat. Review by Andy
Overall Rating
These D1 dimmers are my most successful home automation. I had to replace a failed “conventional” dimmer switch, and tried a couple of alternative switches without much success; the main problem was the lack of neutral wire at the switch in Uk lighting wiring; the “no neutral” switches I tried just weren't up to it.

These are intended to be placed in the old switch box (behind the switch), but as I have wall fittings, I managed to place them inside the fitting itself. By bypassing the old switch (using a connector block to connect both wires from the old switch), the power is permanently on to the wall fittings with both live and neutral, so these dimmers are permanently powered as they need to be; the bulbs are now controlled exclusively by these dimmers at the fitting - which is “logically” no different from having a dimmer in the switch position. To avoid any future hazard for anyone maintaining the light fitting, I have just attached a “permanently live” tag; they should be pulling the breaker, but this alerts them that turning off the (now non-existent) switch is not sufficient.

As I have two wall fittings, I had to use two D1 dimmers; this does now give me the added advantage that I can control the lights separately, which I couldn't do before as they are on the same circuit. Both dimmers can be linked through the eWeLink app, and Google Home (probably Alexa etc, as well but I use Google). I had to use the app to set them up, but now I generally just use Google for convenience - the app is OK, but a faff to get to in a hurry, and I have no idea about how secure it is (but as I dont use it day-to-day, who really cares).

I had intended to just use Google as a “virtual” dimmer switch, and had set it to come on at sunset. However, clouds exist; it gets dark before sunset, so I conceded I still needed a simple manual switch for those times my phone or ipad are not actually in my hand. The best solution I’ve now got is the RM433 remote switch; it controls both lights (yes, two dimmers linked to one remote), which is placed on the old light switch position. This means to all intents, its like the old switch, BUT with the added advantage of being able to take the switch (remote control) off the wall if I want to use it and my phone or iPad is out of charge or elsewhere - so I can dim the lights from my chair, without moving :)

After a couple of failures to turn the lights on or off in the early days (or more usually one or other light) when using Google or the app, generally when trying to do too many operations or using both app and Google at (nearly) the same time, I now try to stick to Google, and its settled down to being very consistent and reliable.

The instructions on the RM433 were incorrect; they state the top left button is both on and off and the top right button is unused, but it turns out that top right is off!

I did have a period of confusion when one light appeared to be on (but still dark); after testing the bulbs, circuits and all sorts else, it turned out the dimmer was just set really really low! By going into the app, you can set the minimum level, and somehow that had got set to zero. The instructions are limited, but its worth just exploring all the settings in the app - there aren't that many, and its all useful.

Performance is good, the slow start and dim off features are nice (better on the eye, and better for the bulbs too), and dimming control is excellent. They are silent in operation, and no flicker at all from my LEDs. Linking to the app and pairing with the remote can be confusing (especially with more than one dimmer on the same circuit - so they both power on at the same time) but its just a case of repeating until they are all done.

This has been so successful, I’m working my way around other rooms now. (Posted on 4/2/2020)

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