Electromagnetic relay is an electronic control device that has a control system (also called an input loop) and a controlled system (also called an output loop). It is usually used in an automatic control circuit, which actually uses a smaller current and is lower. The voltage is an "automatic switch" that controls large currents and higher voltages. Therefore, it plays the role of automatic adjustment, safety protection and conversion circuit in the circuit.
Electromagnetic Relay,MY Series Electromagnetic Relay,Mini Electromagnetic Relay,LY General Electromagnetic Relay Ningbo Bond Industrial Electric Co., Ltd. , https://www.bondelectro.com
The combination of IoT and LED lighting is 1+1 greater than 2. For example, LEDs have a common low-voltage DC drive, which facilitates the integration of IoT and LEDs, thus enabling on-demand illumination and further reducing power consumption. At the same time, when all lights are included At the time of centralized control, it is possible to build a local sensing network and realize intelligent control, so that intelligent lighting and informationization will become possible.
In many projects, LED intelligent lighting can be integrated with information systems and smart cities. The Internet of Things LED lighting has an overall advantage, which completely eliminates the control cable and greatly reduces the engineering implementation cost. 
IoT or LED beads to synthesize the main direction of intelligent lighting
With the maturity of LED technology, the integrated integration of Internet of Things LEDs is the main direction for the future development of intelligent lighting . The Internet of Things and LED are two strategic emerging industries. If they are combined, they can bring very good application results.