The XH-M131 (5V version) is a light detection relay module that uses a photoresistor (LDR) to detect ambient light levels and automatically control a relay. When the light intensity falls below or exceeds a preset threshold (adjustable via a potentiometer), the relay activates or deactivates an external electrical device.

This module operates on 5V DC, making it ideal for use with Arduino, Raspberry Pi, ESP8266, ESP32, and other microcontrollers for smart lighting, automatic control systems, and home automation projects.

Features:

•  5V Operating Voltage – Compatible with microcontrollers and 5V power supplies
•  Automatic Light Control – Activates relay based on ambient light
•  High-Power Relay – Supports up to AC 250V 10A / DC 30V 10A
•  Adjustable Sensitivity – Fine-tune light threshold via a potentiometer
•  Dual Relay Output Modes – NO (Normally Open) & NC (Normally Closed)
•  Simple Wiring – VCC, GND, and OUT terminals
•  Compact PCB Size – Easy integration into projects

The XH-M131 is a 12V light detection sensor module that uses a photoresistor (LDR) to detect light levels and control a relay based on the brightness threshold. It's commonly used for automatic lighting systems, solar tracking, and smart home applications.

Features:

•  Adjustable Threshold: The module allows you to set the light threshold using a potentiometer. You can fine-tune the sensitivity to match your specific requirements.
•  Relay Switch: Depending on the intensity of light, the module can switch an AC or DC load on/off. It comes with normally closed (NC), normally open (NO), and common (COM) ports for easy connectivity.
•  Load Capacity: The relay can handle a maximum current of 10A at AC 250V or DC 30V.
•  LED Indicators: The module features LED indicators for both the relay status and power supply.
•  Stable Operation: With a 12V supply voltage, the XH-M131 ensures stable and reliable performance.

The 5V 30A 1-Channel Relay Module is a high-power switching module designed to control large electrical loads using low-power control signals. It features optocoupler isolation, which enhances safety and protects sensitive control circuits from high-voltage spikes and electrical noise.This is an easy-to-use 1-channel relay board that operates on 5V. Use it to control one 240V power appliance directly from microcontrollers or low-voltage circuits. Perfect for switching high-power 240V appliances - lights, fans, etc, and even high-power motors at lower voltages.

Key Features:

•  High Power Switching: Supports up to 30A at 250V AC, making it suitable for heavy-duty applications.
•  Optocoupler Isolation: Ensures electrical separation between the control circuit and the relay, reducing interference and protecting the microcontroller.
•  Wide Compatibility: Works with 5V DC control systems, including industrial controllers, sensors, and automation devices.
•  LED Indicators: Built-in LED indicators provide visual feedback for power and relay operation.
•  Durable and Reliable: Features a high-quality relay with long lifespan and strong mechanical contacts.
•  Protection Circuitry: Includes a flyback diode to protect against voltage spikes from the relay coil.
• The onboard jumper can set the module's high-level or low-level trigger input

The 12V 30A 1-Channel Relay Module is a high-power switching module designed for controlling large electrical loads using a 12V DC control signal. It features optocoupler isolation, ensuring electrical safety and protecting sensitive control circuits from high-voltage spikes and noise. This module is suitable for industrial automation, home automation, motor control, and high-power switching applications.

Key Features:

•  High Power Switching: Supports up to 30A at 250V AC, making it suitable for heavy-duty applications.
•  Optocoupler Isolation: Ensures electrical separation between the control circuit and the relay, reducing interference and protecting the microcontroller.
•  Wide Compatibility: Works with 12V DC control systems, including industrial controllers, sensors, and automation devices.
•  LED Indicators: Built-in LED indicators provide visual feedback for power and relay operation.
•  Durable and Reliable: Features a high-quality relay with long lifespan and strong mechanical contacts.
•  Protection Circuitry: Includes a flyback diode to protect against voltage spikes from the relay coil.
• The onboard jumper can set the module's high-level or low-level trigger input

The 24V 30A 1-Channel Relay Module is a high-power switching module designed to control large electrical loads using low-power control signals. It features optocoupler isolation, which enhances safety and protects sensitive control circuits from high-voltage spikes and electrical noise.This is an easy-to-use 1-channel relay board that operates on 24V. Use it to control one 240V power appliance directly from microcontrollers or low-voltage circuits. Perfect for switching high-power 240V appliances - lights, fans, etc, and even high-power motors at lower voltages.

Key Features:

•  High Power Switching: Supports up to 30A at 250V AC, making it suitable for heavy-duty applications.
•  Optocoupler Isolation: Ensures electrical separation between the control circuit and the relay, reducing interference and protecting the microcontroller.
•  Wide Compatibility: Works with 24V DC control systems, including industrial controllers, sensors, and automation devices.
•  LED Indicators: Built-in LED indicators provide visual feedback for power and relay operation.
•  Durable and Reliable: Features a high-quality relay with long lifespan and strong mechanical contacts.
•  Protection Circuitry: Includes a flyback diode to protect against voltage spikes from the relay coil.
• The onboard jumper can set the module's high-level or low-level trigger input

Coil Voltage:12VDC
Package: DIP4
Contact Rating (Current): 30A
Switching Voltage: 250VAC Max
 

These 1 Channel 24V Relay Modules offer a 30AMP switching current at up to 240V AC or up to 30V DC, but are controlled with a common 24V DC coil voltage. This means that you can integrate almost any other Hobbyist Electronics into your 24V powered project without hassle, and you could even choose to mix in some AC voltages as well so that you can also switch basic home appliances and other AC goods without being too concerned about that AC escaping into your DC circuit.

The module allows to control the actuators consuming the current up to 10 A with microcontroller's ports or with any implementation set (including Arduino).

 The ESP-01S Relay Module is based on AI-Thinker ESP-01S Wi-Fi Module. It is mostly used in smart home to control any device with the help of phone. The demo code is already uploaded in the ESP-01S just required to supply a DC5V and you can control it. It is designed for DIY projects, internet of things and smart home. It can be used by its APP or LUA source code can be used.

The 12v relay is an electromechanical switching device with a coil rated voltage of 12V and SPDT contacts with a 10A rating. It has 5 pins with simple magnetic circuit has long operational life. It can be used as remote control TV receiver, monitor display and many more. It is UL, CUL, TUV recognized.

The 5V relay is an electromechanical switching device with a coil rated voltage of 5V and SPDT contacts with a 10A rating. It has 5 pins with simple magnetic circuit has long operational life. It can be used as Electronic major or mini projects, DIY projects and  many more. It is UL, CUL, TUV recognized.

The Delay Module is a DC 12 V Trigger Switch Delay Timer And Switch Relay Module. It has various features like: - High-quality power relay module, High-power and high-voltage transistor, Red and Green signal lights, Double-sided PCB board, Stable performance etc, that can be widely used in a variety of power control occasions. It can be applicable in various applications like: - Robotics, Automotive lamp delay, Intelligent product development,  Automation equipment, PLC development, Intelligent home, Burglar alarm delay and many more.