I purchased 4 of these, to mount on low posts at step-entries on redwood deck. 2 are in direct sunlight for at least 50% of day, and light fine til after midnight. 2 are in indirect sunlight for about 60% of the day, and never really charge. I have other solar ground-mounted fixtures, many in indirect sun for much of the day, but still light well. I'm not sure that even the 2 in direct light would charge well enough on an overcast day.

Rating: [3 of 5 Stars!]