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The Power & Lighting Line

Welcome to our Power & Lighting page! This collection of products includes our line of smart plugs and outlets, switches, power monitoring alarms, and relays for control of low and high-voltage circuits. 

If you have a question this page does not answer, please use our online chat service, or fill out the Contact Us form at the bottom of this page for questions or design assistance. 

New to YoLink?

Peruse our product line at your leisure, or use our System Builder, below, to guide you through the process of getting started making power and lighting in your home or business smart!

Want to learn more about our unique technology? Click here

🎁 Temporary price reduction on select smart plugs, just in time for your holiday decorative lighting needs! 🎄

Outdoor Plug, normally $34.99, now $30.99!

Plug Mini, normally $21.99, now $17.99!

Plug with Power Monitoring, normally $34.99, now $28.99!

What is YoLink Control or Control-D2D?

Control D2D (device-to-device) pairing allows for one or more sensors to be paired with one or more other sensors, in a way that they will respond and operate automatically, even with the loss of WiFi, internet and AC power. For example, leak sensors can be paired to a valve controller, so that the water is shut off automatically when a leak is detected. Or, a garage door sensor can be paired to a Relay or Siren, so it activates when the door is opened.

If your smart system absolutely must perform, no matter what - power outage, loss of internet - you can depend on YoLink Control-D2D!

What is LoRa?

We'll spare you the techy mumbo-jumbo and simply tell you that LoRa, short for Long-Range, is a unique wireless communication standard that has superior obstruction penetration, and achieves incredibly long range while using very little power. YoSmart was the first to bring LoRa technology to the smart home, and we continue to innovate, with two-way encryption, and patented Control-D2D device-to-device pairing that offers an offline mode that will continue to provide functionality even with the loss of internet and AC power.

By comparison to smart devices that utilize WiFi, Z-Wave and Zigbee, the YoLink wireless network can achieve over 1300 feet in open air, compared to their ~300 feet.


Select Your Hub

If you are new to YoLink, you will need a Hub or SpeakerHub

Choose either our original YoLink Hub, or our SpeakerHub. Customers love our new SpeakerHub, as it can play attention-getting sounds, like a siren sound, and verbally inform you of off-normal and alarm conditions. 

Please see the Hub or SpeakerHub pages for additional info. 

In-Wall Switches

One of the most popular initial forays into one's first smart home is a smart plug or light switch. Team it up with a smart motion sensor and you have not only convenience (a light turning on automatically), but sometimes safety (added security against things that sometimes happen in the dark, whether it's a trespasser, burglar or just your dog picking an unfortunate place to take a nap!), and almost always, savings (turn lights off if there is no one in the room to use them). This can show up on your power bill -- these devices can pay for themselves (hint, hint). 

Do Try This at Home!  (Smart Bathrooms)

Consider making your bathrooms a little smarter. Replace the light switch(es) and exhaust fan with smart switches. A very basic thing you can do is automatically turn the lights and fans off after they've been on X minutes (where "X" is a number you've defined in advance). Set them for 20 minutes, for example, and you will at least prevent them from staying on needlessly for hours and hours and hours (if you are a parent with children under the age of 25, I figure you know what I mean!). 

A next step is to automate turning on the lights, and also keeping them on if there is someone using the bathroom (this is known as an "occupancy sensor").  This is typically done with motion sensors. Door sensors can be used in this application, too, considering if the door is closed, the bathroom is most-likely occupied. 

The next step in your smart bathroom plans might be to automate the exhaust fan based on humidity or temperature. Using one of our temperature and humidity sensors, you can configure automations to turn the fan on before the room steams up. (You will need to fine-tune this to your ambient humidity levels, which will vary with the seasons, but this works really nicely, and it's very convenient, when you have it set up properly). 

Think that's all you can do? Well, aside from the obvious automation of detecting a water leak in the bathroom, and shutting off the water automatically (we can do that!), did you know you can detect an internal toilet leak?  Our Water Leak Sensor 3, also referred to as the Water Level Monitoring Sensor, can be used to monitor the normal water level in a toilet tank. Once set up, it can keep track of each time the toilet was flushed or refilled (this is stored in historical logs in the app) and it can alert you to a toilet that takes too long to refill. And if criteria of yours are met, you can have one of our smart water valve controllers turn off the water to the house (or zone, floor, etc.).

Smart Plugs & Outlets

"Make it smart" with one of our smart plugs or outlets! Lamps, Christmas/holiday lighting, coffee makers, fish tank/aquarium/pet habitat lighting, and so much more, can benefit from smart scheduling, remote control and automation. Consider the Plug Mini - $20 (economical), easy to install, and portable - take it with you when you move, or move it to a new location and duty, if your needs change!

Do Try This at Home!  - Consider making your bathrooms a little smarter. Replace the light switch(es) and exhaust fan with smart switches. A very basic thing you can do is automatically turn the lights and fans off after X minutes (where "X" is a number you've defined in advance). Set them for 20 minutes, for example, and you will at least prevent them staying on needlessly for hours and hours and hours (if you are a parent with children under the age of 25, I figure you know what I mean!). 

A next step is to automate your exhaust fan. There are a number of ways of doing this, including turning on than when a water level sensor detects a toilet flush, but the most popular method is to use on of our temperature & humidity sensors, to turn the fan on based on temperature or humidity increases. You can for example set a high humidity level and a low humidity level, and set the fan to turn on when the humidity level of the bathroom reaches the high level and turn off when it returns to the low level. 

"Better Together" Items

As mentioned, a smart motion sensor can be used to automatically turn on a light when you enter the room, and it can also turn the light off if there has not been motion detected for X number of minutes (where "X" is a number defined by you). 

Here are some other things you might try:

Use a Door Sensor to turn on the lights in a room or closet, walk-in pantry, etcetera. Optionally, use the same sensor to turn the light off when the door is closed. You might use a door sensor to turn the light on, and a motion sensor detecting no motion to turn it off. 

Power Fail Alarms

Our Power Fail Alarm can monitor USB or 120VAC power, as well as other voltages with the use of a USB adapter compatible with the power source. 

Be notified audibly when power is removed from the sensor. If the PFA has an internet connection via the Hub or SpeakerHub, receive a notification on your phone (app push, SMS or email) immediately. If the power outage removes power and internet from the hub, you will receive a notification in ~30 minutes. Additionally, trigger remote sirens or control YoLink devices on power loss, using automation (internet required) or Control-D2D device-to-device pairing.


We offer several options for controlling low-voltage and high-voltage devices and equipment:

Our In-Wall Switch can be used to control 120V loads, or a 120 VAC coil relay or contactor (that can control low- or high-voltage circuits). The In-Wall Switch has a benefit of offering local on/off control of the circuit, in addition to the other ways, such as from the phone app, Alexa, etc.

Our Smart Relay can control a 120 or less volt coil relay or load, up to 5 amps at 120 VAC. The Relay is a 5-30VDC-powered device, with no battery back-up. A power adapter is included. The Relay can, for example, be powered by USB power. The Relay has one set of normally-open contacts. If normally-closed contacts are required, furnish a 12VDC coil relay, for example an "ice cube" relay, that has XPDT contacts, where "DT" is "double-throw" and "XP" is single-pole ("SP") or double-pole("DP"). (Each pole is a set of "Form-C" contacts: common, normally-open and normally-closed)

Another alternative is to use an Alarm Controller as a relay controller. Our Alarm Controllers, two types, are typically sold as a kit, with a siren. If used as a relay controller, simply cut the siren off the wire, and splice the wire conductors to your 12VDC coil relay (not included). If used this way, we recommend the use of a mechanically-latching 12VDC coil relay, or limit the duration of use to short periods, as the controller battery (which powers the controller itself and any electrical loads) from the same batteries. Our X3 Alarm Controller, with 10-year replaceable lithium batteries, may be a better choice for applications with extended on time. An obvious benefit of this method is the controllers are wireless (while the Relay is not), so no additional wiring is required. 

Remote Control Devices

You have many ways to control your YoLink devices, including but not limited to manually from the app, via automation (e.g. motion sensors turning on the lights), via Alexa, Google Assistant, IFTTT and Home Assistant (if applicable to you). But if that is not enough for you, we do offer three tactile methods of controlling your devices. 

Our Remote can be Control-D2D paired to your devices, and it has a 500' range!  Keep in mind, it is only for D2D pairing, it does not work with the app, but it is good for setting up  remote plug or relay with a dedicated button. 

Our AlarmFob and its sister device, the FlexFob offer control of your devices and so much more. The AlarmFob has pre-programmed security system buttons, like arm, disarm, and panic, but each button can have a second function, depending on your short or long press. The FlexFob is meant to be more of a blank slate for you and it can perform device control and security functions as well as it can trigger an Alexa routine and IFTTT applets. Sound like Greek to you? Don't worry, we don't force you to get that fancy, if you don't want. But either fob can be used to control any of your YoLink devices, and even together at the same time. Would you like to lock the door and turn on some lights when you close the garage door, or unlock the door leading from the garage door to the house, and turn on lights as you open the door? Can-do! Gate control? For sure!  Of course, arming your security devices or disarming them automatically with your fob button press is super-easy. 

Our fobs go on a keychain ring easily. The AlarmFob comes with a two piece bracket that together can be used to make a car visor clip for the fobs, and one bracket can be used as a wall-mount bracket. Convenient!

Still Haven't Found What You're Looking For? 

Contact Pre-Purchase Support

If you are unable to find the information you are looking for, please contact our pre-purchase support department at

If your matter is urgent, please call us at  949-825-5958. Please note our Irvine, California office hours: 9AM - 5PM Pacific, Monday through Friday. You are likely to experience extended waits as we attend to previous customer requests.