Monday Kids LED Energy-Saving Lamp Kit with 45 High-Brightness LEDs - E27 Sound and Light Control with Delay DIY Soldering Kit

This product is an LED Energy-Saving Lamp Kit designed for electronic enthusiasts and students to learn and practice electronics skills. The kit includes all necessary electronic components and circuit board, allowing users to assemble and solder a complete LED energy-saving lamp. It is ideal for students for electronic skills training and for electronic enthusiasts for DIY projects.

Product Parameters:

Model: WK-56-77B
Power Supply Voltage: 220V AC
Product Weight: 46g
Number of LEDs: 45
Case Size: 250 x 180mm
PCB Circuit Board Size: 50 x 50mm
 

Function Explanation: The sound and light-controlled LED energy-saving lamp integrates sound control, light control, and delay automatic control technologies. During the day, when the light is strong, the lamp remains off even if there is a sound source. In the evening, as the environment darkens, the switch enters standby mode. When it detects sounds such as voices or footsteps, the lamp turns on immediately and automatically turns off after half a minute, preventing accidents in the dark and eliminating the waste of energy in corridors.

Circuit Principle: The main component of the circuit is the CD4011 digital integrated circuit, which contains four independent NAND gates (VD1~VD4), simplifying the circuit structure and ensuring high reliability. Sound signals (such as footsteps or claps) are received by the electret microphone MK1 and converted into electrical signals. These signals are coupled to the base of Q2 via C4 for voltage amplification, then sent to pin 2 of U1. R7 and R8 provide bias current to the base of Q2. During the day, when there is no light, the high resistance of the photoresistor PR keeps Q2 off. At night, PR's resistance decreases, causing Q2 to turn on. When C5 charges to a certain level, the signal is output from pin 11 of U1 and coupled to the base of Q1 via C1, closing the electronic switch. Once C5 is fully charged, it discharges through R1, and pin 11 of U1 outputs a low level, opening the electronic switch. This completes a cycle of the electronic switch from on to off. Diodes D1~D4 rectify the 220V AC to pulsating DC, which is then filtered by C3 and stepped down by R2 to power the circuit.

Product Features:

Educational Value: Suitable for students to conduct electronic skills training, helping them grasp basic knowledge of electronic components and soldering techniques.
DIY Project: Perfect for electronic enthusiasts to carry out DIY projects, enhancing hands-on skills and innovative thinking.
High-Quality Components: Uses high-quality electronic components to ensure circuit stability and reliability.
Detailed Manual: Comes with a detailed assembly and soldering manual to help users complete the project smoothly.
Practical Function: The finished LED energy-saving lamp can be used for practical applications such as energy-saving lighting.
 

Combination of Education and Entertainment: Students can learn electronic knowledge through hands-on creation, increasing their interest in learning.
Easy Assembly: Detailed manual and high-quality components make the assembly process simple and easy to understand.
 

Usage Instructions:

Preparation: Gather soldering tools (soldering iron, solder wire, etc.) and power supply.
Assemble Circuit: Follow the manual to solder the electronic components onto the circuit board.
Connect Power: Connect the circuit board to a 220V AC power supply.
Test Function: Test the LED energy-saving lamp's functionality by inputting a signal to ensure it works properly.
 

Circuit Diagram: A detailed circuit diagram is provided with the kit. Users can follow the circuit diagram to assemble and solder, ensuring the accuracy of the circuit.

Purchase Information:

Applicable Range: The kit is suitable for students' electronic skills training and electronic enthusiasts' DIY projects.