Super mini high power solar light control panel

1. Principle:
When using different power supplies, the reference ground is different, thereby turning on or off the MOS tube.
2. Notes:
Choose different MOS tubes according to different powers. Choose a large MOS package if it is above 5W, and a small MOS package if it is below 5W.
3. Material suggestions:
(1) The battery can be used as a used mobile phone battery, but the battery itself has a protective plate, otherwise it is easy to short circuit or over-discharge.
(2) Solar cells can be purchased on a certain fish store for 9.9 yuan with free shipping. You should be able to buy 100 pieces, of which at least 30-40 are usable solar panels.
(3) LEDs can also be purchased by yourself. There are no special requirements, but be careful to connect a resistor in series to limit the current. If there are more lights, the resistor can be packaged larger and the resistance value is smaller. If there are fewer lights, the resistor can be packaged smaller and the resistance value is larger. point.
4. Link diagram: