This tutorial is about making of a simple Solar lamp by using 20 straw hat LEDs and TP4056 charging module. The making procedure is clearly shown in the above video.
You can charge this lamp by using your smartphone charger as well through the inbuilt solar panel. You can also use it as a Power Bank to charge USB devices like smartphones and tablets. Two powerful 3400 mAh 18650 Li-Ion batteries are used for backup.
👉 Emergency Lamp ⠀
👉 Solar cum USB charging ⠀
👉 6800 mAh Powerbank
The resistor watt mentioned in the schematic is not correct, it needs a higher wattage resistor. I have noticed the resistor is heating up rapidly and I am also not getting the desired brightness from the LEDs.
To overcome the above issue, I modified my schematic as shown below, now it is working as charm.
I will highly recommend to use modified schematic.
Thank you so much for reading my article.