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No, we do not advise this. The only thing that should be connected is an ON/OFF switch or a pushbutton, between the “SW” and “L” inputs. A dimmer connected to the “SW” input would not allow dimming as the Shelly products use relays or MOSFET transistors to respectively turn ON/OFF and dim.

The Shelly products that allow dimming are Shelly Dimmer2 for 110-220V AC lights and RGBW2 for 12V-24V DC loads.

All Shelly battery-powered devices are at all times in sleep mode. They have a secondary ultra-low-power processor that is measuring the sensors, the battery, and the buttons. In the event of a change in any of the indicators, this processor wakes up the main CPU to transmit the information over the Wi-Fi network.

The Shelly devices that support power measurement are: Shelly 1PM and Shelly Plus 1PM Shelly 2.5 Shelly Pro Series devices Shelly EM Shelly 3EM Shelly Dimmer 2 Shelly RGBW2 Shelly Plug, Shelly Plus S, Shelly Plus US Shelly Bulbs – Duo, RGBW, Vintage

The battery life of each battery-operated device is stated on its dedicated product page. Each device’s battery life is estimated based on its “out of the box” setting. Customized settings might extend or shorten the battery life.

Shelly 2.5 has roller shutter management and can control the shutter’s engine. Additional sensors (for example: wind sensor) would not work.

Shelly 1 or Shelly Plus 1 is most suitable for use in such configurations. Depending on the motor you might need two devices for each position.

Yes. For this purpose you need a reed switch connected to “SW” input or to Shelly 1 temperature Add-On.

The maximum ambient temperature is 40 degrees. With no load, PCB temperature is 55-60 degrees. Heating protection will switch off the device at 95 degrees.

Yes, that is possible with Shelly EM/3EM.

We recommend using the cloud for better product expierence. If devices are not cloud enabled, they should be controlled only within the local network.

Yes. It is possible to control them locally through the embedded web server of the device (access it by typing the IP of the shelly device in browser) or through MQTT broker.

The limit is 100 entries and cannot be changed. Also they cannot be deleted, they are overwritten when the limit is exceeded.

Logs saved are related to the cloud connection. Please make sure that the cloud is enabled from the application.

Check if you can reach the device through IP. If you can reach it, then there is problem with the cloud connection. To fix that, Refresh/Reboot Shelly app and enable the cloud from there. Alternatively, you can make factory reset and start from scratch.

Set static IP out of the DHCP range. Pay attention on the RSSI signal. Make sure that you do not have smart features enabled on your router and you are using the best wi-fi channel suitable for you. If problem continues, contact the support for further troubleshooting.

Reboot the router and try adding the device again. If device is still not included successfully, check the IP address of Shelly device and type it in the web browser. Then when WebUI is loaded, check in the right corner if Time tab is working. If not, that means that your device does not have internet connection and problem could be in the default gateway, firewall, DNS etc.

This is possible after you click on the Settings button in the right corner of your application and then click on the pencil icon.

Set static IP out of the DHCP range. Pay attention to the RSSI signal. Make sure that you do not have smart features enabled on your router and you are using the best wi-fi channel suitable for you. If the problem continues, contact Support for further troubleshooting.

You need to check what is the device’s IP address. Then type it in your browser to access the local server of the device. Then enable the advanced developer settings.

To access the consumption history of your device, it is necessary to be connected to the Cloud.

The channels of the multi-channel Shelly devices are displayed separately in the application. That is because they are independent of one another and you can create separate scenes for each channel.

Under each device there is a “Share” section. Maximum 5 members can be added to each device.

The old generation devices does not support cloud and mqtt in same time. The only exception is H&T.

In order to receive notifications when the state of Door/Window 2 sensor changes, you need to create a scene.

To receive email/phone notifications, you need to make a scene and make sure that notifications are enables in the app or the phone settings.

To create a scene, press the button located at the top right of the screen and select “Add Scene” from the drop-down menu. Type the name of the scene and select the room in which this scene will be located. Then select a suitable picture or upload an image from your device.
The scene is divided into 2 main stages:
1) “When” – refers to conditions that must be met to activate the scene. You can add conditions depending on the type of device or time. Shelly Cloud can support many conditions that must be true to fulfill the scene. If you want to add a condition, you have to press the “AND” button.
2) “Do” – refers to the scene that should be activated given the “When” conditions appear.
For example: (When) If Shelly Motion sensor detects motion after 10PM. (Do) Shelly Dimmer will turn on the lights with 50% dimming.If the performance of a scene depends on more than one factor, you can use “OR”.

There are 3 condition types, used for different purposes – “One time”, “Repeatedly” and “On any change”.
– “One time” – when the pre-set condition has been reached, the scene will be activated only one time. For the scene to be activated again, the “WHEN” condition needs to be repeated. If you additionally insert a time in the “Condition is valid” field, the scene will not start until the “WHEN” state has existed for at least this time.
– “Repeatedly” –  The “WHEN” state is constantly queried every full minute. And all set “DO” actions are also queried every minute if the “WHEN” state is not changed.
– “On any change” – This condition is mainly used for monitoring temperature or power consumption. When that condition type is chosen for the value of X, it will always activate the same scene when pre-set conditions are met.
Example:
(WHEN) Shelly EM detects more than 15W, (DO) Send notification.
In this case, every time Shelly EM detects a power consumption of over 15 W ( > 15W ), a scene will be triggered and the device will send a notification to the app, hence the user.

Please contact our Technical Support Team by sending an e-mail to [email protected] or raise a ticket from here – https://ticket.shelly.support/open.php

Shelly Plug has 16A relay, while Shelly Plug S has 12A relay with internal temperature sensor checking for the PCB temperature.

It is less than 1W when the relay is on.

No, the protocol is used only for device inclusion.

It is possible to control the devices together through HTTP commands – https://shelly.cloud/documents/developers/ddd_communication.pdf or through app scenes

The product is compatible with Shelly 1L and Dimmer 2.

The temperature addon is useful for heating automations (when you connect DS18B20 sensor or DHT22 ), water temperature monitoring (DS18B20) or for monitoring the open/close status for your garage door by connecting reed switch to the addon.

Yes, it is possible. The commands are sent locally and they work even when there is no internet access.

Yes, the device is reporting the energy usage all the time in his internal memory in case a Wi-Fi connection is not available. The data can be downloaded at any time in .csv format.

The send status period is set on 12H and cannot be changed. The device will still wake up if there are configured temperature or humidity thresholds.

The voltage rate of batteries needs to be exactly 3V. Using higher voltage will damage the device.

It is possible to control Shelly devices without internet, but you need to configure own SNTP server, from where they can obtain information about the time.

You need to check what is Shelly’s IP address. Then type it in your browser to access the local server of the device. Then enable the advanced developer settings.

Yes, the new generation devices (Shelly Plus and Shelly Pro series) support HTTP/HTTPS actions.

No, it is not possible.

All products from Shelly Plus line and Shelly Pro line are Next Generation devices.

Тhe Shelly devices support “local” action URLs. This allows devices to invoke actions not only on other devices, but on themselves as well. To execute a local action, the action URL should be set with a prefix http://localhost/.

No. The currently available temperature Add-On can be used only for the old generation devices – Shelly 1 and Shelly 1PM.

No, old generation devices does not support MQTT with TLS.

Yes, NG devices support MQTTs.

No, the scripting is available only in New Generation devices – Shelly Plus and Shelly Pro series.

Maximum 3 x DS18B20 temperature sensors can be added or 1 x DHT22 sensor.

No, the external switch will ground the data line from the sensors.

Shelly relays can switch OFF/ON the ceiling fan, but they cannot control the speed of the ceiling fan.

Shelly RGBW2 comes with an octocoupler. You can use it in case you want to use a 220V AC switch with the Shelly RGBW2.

It is written 30-50V DC because UL lab test it 20% under and above the declared consumption. This mean the switch can work from 24-60VDC.

Our devices are hub-free and cannot work with hubs. The only way to control 2 different technologies (wi-fi – shelly devices and Zigbee) is using an MQTT broker.