2 sets do not hold a good charge and some nights those 2 sets do not come on at all

(They were usually on for only a few minutes at a time, but I turned them on for a full evening one night to see how well the charge held up.)Only criticism is that the plastic cover for the connection where the lead wire from the charger panel connects to the actual light string is flimsy/loose on both strings.

Well worth the money - hold a charge from dusk to dawn.