Luci's toughest, longest lasting light ever, go further with the Luci Pro Series: Outdoor 2.0. With a two-way USB port, the Luci Pro Series charges from empty to full in just a few hours, and lasts 50 hours or more on a single solar charge. Or, top up the charge on your smartphone with the power of the sun. Test your limits with the light made for Mother Nature's biggest fans