DIY Solar Street Light Circuit | Automatic ON/OFF Using LDR & BC548 Transistor | Beginner Friendly

Описание: In this video I build a simple Solar Street Light Circuit that turns ON automatically at night and turns OFF during the day. Perfect for beginners — this project uses a BC548 transistor, LDR (light dependent resistor), 1KΩ resistor, and an LED.

🔧 Parts used:
BC548 transistor
LDR (Light Dependent Resistor)
1KΩ resistor
LED
Small wires / solder (optional)

💡 How it works:
During daylight the LDR has low resistance so the transistor keeps the LED OFF. At night the LDR resistance increases, the transistor switches, and the LED lights up automatically. I demonstrate wiring, soldering tips, and live day/night testing.

📺 What you’ll see in this video:
0:00 Intro
0:30 Parts list
1:00 Circuit wiring & explanation
3:00 Soldering and assembly tips
4:30 Live test — day vs night
5:30 Final thoughts & improvements

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