How to Build your own Solar LED Blinker
A simple Solar blinker inside the PET bottle that can be used as warning device or can be used by fishermen at night keeping them safer.
I used a LED blinker connected to transistor to drive the 1W LED so it will be brighter.
I incorporated TP4056 board so that the 18650 battery will be safe from overcharging or from being drained.
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