I just returned from a 5 day camping /fishing trip. I used my LuminAID lights for the tent and around the camp. The lights were used for about 3 hours daily and they all charged back up during the day. One was used under a Noah's Tarp and it charged without direct sun light! These are great lights and weigh so much less than traditional battery or fuel operated lanterns.
Love2FishI've used the LUCI branded solar lights before and just purchased these, the fact that they can be topped up with a USB makes them really convenient if you're stopped somewhere with power before hitting the trail again.