Material and process of solar nightlight
Battery two series, the solar panels are also 22 series, change 4V after charging the battery, the hand is also directly connected to the above charge, 2V LED lights on a series of tens of ohms resistance, OK!
Battery two series, the solar panels are also 22 series, change 4V after charging the battery, the hand is also directly connected to the above charge, 2V LED lights on a series of tens of ohms resistance, OK.
Just buy a small solar panel, make a small battery, and then get some LED lights, and then put it on the OK, and then make their own control circuit on the OK.
