Pro 300 is a true heavyweight among phone-charging solar lanterns. Pro 300 features high density NMC batteries with charging capacity sufficient for today’s battery-hungry devices, such as smartphones. The batteries also power its brilliant light, rated at 300 lumens – 30X brighter than a typical kerosene lamp. At its lowest levels of brightness, Pro 300 provides 100 hours of light. This is the ideal lantern for the lighting and charging needs of your home or business.