HiLetgo 2pcs 12V Single Bistable Self-Locking Relay Module Push to Start and Stop

Incorporating the Self-Locking Relay Module into my electronic projects has been a breeze. Its clear and well-labeled terminals facilitate effortless connections, minimizing the likelihood of errors during setup. The module supports both active low and active high trigger signals, allowing seamless integration with a variety of microcontrollers, sensors, and other input devices. I have successfully implemented this relay module in home automation projects to control lighting systems, motorized curtains, and other appliances. Its stable performance and low power consumption have proven to be ideal for creating energy-efficient solutions. Furthermore, in my robotic endeavors, the relay module has been instrumental in handling complex switching tasks, such as controlling multiple motors and actuators. Reliability is paramount in any electronic project, and the Self-Locking Relay Module has exceeded my expectations in this regard. Its durable components and solid-state design ensure consistent performance, minimizing the risk of mechanical failure or wear over extended periods of use. Moreover, the module's ability to handle both AC and DC loads further adds to its versatility. Whether dealing with resistive, inductive, or capacitive loads, this relay module has demonstrated exceptional reliability and transient suppression capabilities. In conclusion, the Self-Locking Relay Module has proven to be an invaluable asset in my technical endeavors. Its self-locking mechanism, ease of integration, and reliability make it an excellent choice for a wide range of electronic projects. Whether you are a hobbyist or a seasoned engineer, this relay module is a must-have component in your arsenal. Its versatility and performance will undoubtedly elevate the efficiency and functionality of your projects. Highly recommended! ⭐⭐⭐⭐⭐ 5 out of five stars! Review of Self-Locking Relay Module: Versatile and Reliable Solution for Electronic Projects As a technical enthusiast engaged in diverse electronic initiatives, I have determined the Self-Locking Relay Module to be an imperative and quite versatile aspect in my toolkit. Its fantastic performance, ease of integration, and robust design have appreciably better the efficiency and capability of my projects. The Self-Locking Relay Module's functionality revolves round its capacity to govern the switching of high-power circuits using low-electricity signals. Its compact shape issue and great creation make it appropriate for a extensive range of packages, from domestic automation and robotics to industrial control structures. One of the standout features of this relay module is its self-locking mechanism, which enables it to keep its state even after the manipulate sign is removed. This characteristic is particularly useful in situations in which a steady kingdom wishes to be maintained without non-stop power supply or input signal. Additionally, the module's bistable feature conserves power and reduces the risk of accidental switching. Incorporating the Self-Locking Relay Module into my digital projects has been a breeze. Its clear and properly-categorized terminals facilitate easy connections, minimizing the probability of mistakes at some point of setup. The module supports each energetic low and lively excessive trigger alerts, permitting seamless integration with quite a few microcontrollers, sensors, and other input devices. I actually have efficiently implemented this relay module in domestic automation projects to govern lighting fixtures systems, motorized curtains, and other appliances. Its stable performance and coffee power intake have tested to be ideal for growing electricity-efficient answers. Furthermore, in my robot endeavors, the relay module has been instrumental in coping with complex switching tasks, including controlling a couple of cars and actuators. Reliability is paramount in any electronic task, and the Self-Locking Relay Module has exceeded my expectancies in this regard. Its durable additives and stable-nation design ensure constant overall performance, minimizing the risk of mechanical failure or put on over prolonged periods of use. Moreover, the module's capability to handle both AC and DC masses in addition adds to its versatility. Whether managing resistive, inductive, or capacitive loads, this relay module has verified first rate reliability and transient suppression abilties. The Self-Locking Relay Module has established to be a useful asset in my technical endeavors. Its self-locking mechanism, ease of integration, and reliability make it an great desire for a wide variety of digital projects. Whether you're a hobbyist or a seasoned engineer, this relay module is a must-have thing on your arsenal. Its versatility and overall performance will absolutely increase the efficiency and capability of your tasks. Highly recommended!

Great product with high quality. I used these to fix an excavator control board. i cobbled it together with a bunch of different parts and these actually have held up for a while now. It's been 3 years now outside it the weather and elements in a 3d printed cover and still works great .

This is sold as a bi-stable relay. It is not. It is a regular normally open/closed (NO/NC) relay with a latching circuit. The relay does not hold its state on power loss. It defaults to off. The other odd thing is that the trigger circuit requires a connection and then only changed the relay state when the trigger is disconnected. This would be good for lights but not for the motor drive applications. Back to shopping, I guess.

I used these in a motorcycle to convert a momentary button to latched switching for a killswitch application. They both worked as described but both ultimately failed, most likely due to heat and vibration. I could tell they were never intended for that kind of environment when I saw them, so I can't fault the item. They may work in a car, but I wouldn't advise them for a motorcycle.

This is an excellent little product once you figure out how to get it to work. It turns a momentary signal to a continuous signal. Unfortunately, there is scant documentation, other than in information that the vendor posts on Amazon. For me, at least, this was not enough to understand how it works, and I have no previous experience with relays to fall back on. It took me a few days to figure this out. Please see the attached (crude) diagram I made that explains: - The relay itself needs to receive power. - This power IS NOT transmitted through the relay. It's just to operate the relay's electronics and the actual mechanical switch inside (which you can hear turn on and off when you click the "test" button or use the switch port). - The OTHER END, where your "controlled device" connects to, needs it's own power source. This is the part that confused me, as I (naively) assumed that the 12v power source flowed in from one end, and out the other, and the relay was just acting as a fancy switch. This isn't the case. - The relay does "switch" power on and off - between the (+) and (-) terminals (or technically, the NO and COM terminals) when it's triggered. But these terminals need to be powered independently of the relay's power. Once I realized this, the relay worked perfectly. Hope it works for your needs.

Absolute junk. I ordered SIX of these and none of them click — they aren’t a true latching relay. I only needed three so I ordered extra for spare, unfortunately none of them worked! I missed the return window for two, but returned the other four. Don’t buy these if you are looking for a true latching relay. The product description is very misleading and deceptive.

Worked well. Pushing the button on the circuit board turns the relay on. A second push turns it off. A small 2-wire cable plugs into the connector next to the switch. These wires are connect across the circuit board switch. This lets you use a remote push-button switch to turn the relay on and off. I agree with a previous user who put a 0.1uF capacitor across the push-button switch to minimize switch bounce. I brushed the 2 wires together (to simulate switch contact closure) and the relay would turn on and off rapidly a couple times and then settle to an either on or off state which wasn't predictable. Putting that 0.1uF cap fixed it.

These particular relay units were recommended to me as a temporary fix for a problem I'm having at work. I need to turn On/Off a couple of different color LEDs to indicated a change in status - problem is, the output of what I am attempting to monitor is a brief closure of a NO contact. This relay board operates on a rage of DC voltages - right now I'm powering it with a 9-volt battery, having connected a 9-volt battery connector to the power input terminal. The two LEDs are connected to the switching relay terminal, and to a different power source. So far this works as needed. Haven't had any issues with the module. My one and only comment/complaint would be that the two terminal blocks on this module are of poor quality - everything else is more than adequate. If I were to end up using these for something permanent rather than temporary - I would replace the terminal bocks - probably just soldering wires in their place. Other than that, I'm happy with my purchase.

As described, works well.

Work as described

They work but it is a real bad company. Expect anything. Missing parts etc. I have to order another due to a missing wire and plug. Try and fit a good brand that will assure you that you will receive what you need. This company is shady