TASMOTA Smart Dimmer Switch by Martin Jerry | ESP8266, Smart Light Switch That Work with Home Assistant | 2.4G WiFi Smart Home Devices and Needs Neutral Wires, 4-Pack
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Availability:
Only 10 left in stock, order soon!
Arrives
Thursday, Aug 28
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Number of Items: 4
Features
- TASMOTA: This switch is TASMOTA build in, users do not need to flash by themselve. ESP8266 chip, Do NOT work with Smart Life App and supports 2.4G WiFi Only
- Installation: This wifi switch is single pole (NOT 3 way smart switch). Neutral required and 2.4G WiFi is necessary.
- Specifications: 100-240V, dimmer for LED bulbs up to 150W.
- Home Assistant: with MQTT set well, you can link it into your Home Assistant platform easily. Then, you can also use Alexa and Google Home to contorl it
Description
smart switch Compatible with Alexan and Google Assistant Cannot work with Homekit and Siri
Operation Mode: Smart Switch
Operating Voltage: 120 Volts (AC)
Contact Type: Normally Open
Connector Type: Screw
Brand: Martin Jerry
Terminal: Screw
Item dimensions L x W x H: 4.22 x 1.53 x 1.53 inches
Circuit Type: 1-way
Mounting Type: Wall Mount
Actuator Type: Dimmer
Product Dimensions : 4.22 x 1.53 x 1.53 inches; 1.32 Pounds
Item model number : SD01
Date First Available : August 26, 2022
Manufacturer : Martin Jerry
Best Sellers Rank: #447,647 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #1,185 in Electrical Light Switches
#1,185 in Electrical Light Switches:
Customer Reviews: 3.9 3.9 out of 5 stars 50 ratings
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Aug 28
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Number of Items: 1
I purchased three of these to control some exterior lights. The build quality was great and they installed with ease. By the way, it's not listed anywhere, but in case you're wondering the depth the switch required inside the electrical box is slightly over 1.25 inches (plus wires). This is important, since many electrical boxes don't have a lot of space. The switches came with Tasmota 12.1, which I was able to easily upgrade to 14.1. For the person who received switches with version 6.3 and failed to upgrade to 12.1: be aware that a direct upgrade is not possible. See the tasmota upgrade documentation; you'll need to go through several version upgrades to get to 12.1. I use my own scripts with cron to control the lights, so I can't speak to Home Assistant or other automation platform compatibility. But the HTTP interface to the switches works perfectly. I'm able to turn them on/off, set the dimmer level, and get the current status. The response time when executing these commands is instantaneous. The one negative I have is that the dimmer range is not very good. I think this is because I use LED lights and this switch has leading-edge dimming. When the dimming level is set to 45% the lights are basically off. 50% is barely on. Martin Jerry makes another switch, the US-SD-TC01 which has trailing-edge dimming, that is more suitable for LED lights. I should have done more research and picked those switches for my application, but that's on me not the switches, so I'm not going to take away any stars for that. Plus, I just set the lights between 50% and 100% instead of 0% to 100%. Overall, I'm quite happy with these switches in the short time I've had them.
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Reviewed in the United States on July 10, 2024 by S. Emery
Number of Items: 1
I own at least a half a dozen of these switches (most are the old style with out tasmota). I have put esphome on all of them. The old style requires you to solder wires and manually flash which was a pain, but these tasmota versions are much easier. A note for people switching to esphome, the only firmware that will fit in the initial conversation to esphome is a fully stripped down version of esphome with only the Ota and wifi components enabled. After initial upload, then esphome can flash a full version over the air. There are plenty of Martin and jerry yaml configurations on internet right now. In terms of durability, they are quite good. I have had two of these switches (non tasmota firmware style but same hardware) for nearly 3 years now and one of them has lost its "clickyness" but still works the same, just without the satisfying "click" sound. Wifi connectivity is very good, but I recommend static ip config to reduce chance of disconnects from homeassistant.
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Reviewed in the United States on March 13, 2025 by jhminix
Number of Items: 1
These switches are terrible for dimming dimmable led bulbs. They flicker like crazy when dimmed and not even dimmed to a low setting. I have them set at 72% and they’re still flickering. If I go below 50% they shut off completely. I’ll never buy these again and I can’t recommend these to anyone. Buy meross brand instead. Although not open source they work completely local so no cloud is required if set up that way.
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Reviewed in the United States on July 2, 2025 by Julian Cross
Number of Items: 1
Really glad to see Martin Jerry supporting open firmwares. They have good quality switches, and the setup process and usage is so much better with Tasmota. ESPHome was easy enough to flash, and works great. The only hiccup is that you have to be sure to flash Tasmota minimal before flashing your ESPHome firmware. After flashing, you might need to power cycle the switch to get dimming to work properly. Hardware wise, the buttons have good tactile feedback and aren’t mushy. The LEDs are a good brightness for most places, and are really nice for finding the switch in the dark. By default, the ESPHome firmware from the esphome-devices website has the red LED on when the switch is off, which works well.
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Reviewed in the United States on December 17, 2022 by Tyler Wilson
Number of Items: 1
Great product no need to flash the firmware to Tasmota since it comes pre-installed. Mine came with version 12.1.1 and I upgraded it to the latest 12.2.0 no issues upgrading as someone else said in their review. Home Assistant recognized it instantly. Followed the PWM Dimmer Support article to adjust the switch to my LEDs DimmerRange
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Reviewed in the United States on November 13, 2022 by Edgardo
Number of Items: 1
This Tasmota pre-flashed unit works out of the box with no internet connectivity requirements. You will need a wifi network with DHCP, but that's it. I disassembled the unit and the build quality was good, it appears to be on-par with other name-brand in-wall modules I've bought at the local home center. The main switch is a proper microswitch, not a cheap PCB pushbutton, so it should last. The tactile feel is very different from a regular switch, though, so be advised. More like clicking a mouse than toggling a switch. The Tasmota firmware supports a timer mode so this is a no-brainer replacement upgrade for in-wall timers. I recommend and am glad this company is making them. The dimmer function is pretty neat. The software records the button selected dimmer, so you can fiddle with it via the API but when you hit the button it goes back to the button selected level. I can see that being useful. It does have a relay so when it's off it's off. It also has a temperature sensor on the triac for overtemp protection. That said the dimmer triac is a TO-220 package in a plastic box in the wall, so the low watt rating is real. Bench testing it with a incandescent bulb it behaved exactly how I'd expect. It does need a unswitched power feed with a neutral wire. Design requirement, no way around it. The one point I didn't like is the mounting ears are plastic, with the cover screws threading into plastic. It didn't seem to be an issue on install into a properly leveled box, though, the screws tightened okay and the switch was solid.
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Reviewed in the United States on May 3, 2024 by TJNII
Number of Items: 1
this device was easy to install and setup in Home Assistant but unfortunately it failed yesterday after 3 months from purchase. Sent an email to manufacturer to see if they will warranty it
Reviewed in the United States on May 19, 2024 by GNOE