Solar energy is a joke. Even these little flashlights and radios that are suppose to recharge their battery with solar...... junk.
“Even the little flashlights & radios...junk.”
Mostly agreed.
I do have a solar lantern for emergencies.
I have noted about 8 hours in the sun will give back only about 2 hours of light.
It has an on/off switch, an important feature. Theoretically the charge is saved when off, but not really.
If it’s charged for a day, then left off for a day, most of the stored energy goes away anyway.
Of course, overcast day means dark night.