The PackLite Max USB is probably the brightest solar inflatable lamp. Rechargeable using solar or USB input, you may use it everywhere. It offers over 150 lumens of vivid LED light on Turbo mode and will operate for about 50 hours on Low mode if fully recharged. It is the best universal lantern to illuminate your camping area or family shelter. Charges using solar energy in 12-14 hours of direct outdoor daylight or by USB input in 1-2 hours.