“Auto Turn On at Night | Street Light Circuit | DIY Electronics Project

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💡 Build an Automatic Street Light Control Circuit — a simple yet powerful project that turns ON lights automatically at night and OFF during the day.

This circuit uses LDR (Light Dependent Resistor) and a transistor or relay-based system to detect light levels. When the sun sets, the resistance of the LDR increases, triggering the circuit to switch ON the light — saving electricity and effort.

⚙️ In This Video, You’ll Learn:

How to make a street light circuit that works automatically

LDR working principle explained

Step-by-step connection of LDR, transistor, and relay

How to test your automatic light system

How to adjust sensitivity for different light conditions

💡 Perfect for:

Home automation

Street lights, garden lights, porch lamps

Electronics and school projects

Beginners in electrical and automation circuits

✅ Components Used:
LDR sensor, 10k resistor, BC547 transistor, relay module, LED bulb, power source (12V DC)

📚 Learn electronics the smart way — simple, practical, and powerful.
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