This easy-to-use lantern uses renewable, clean solar energy. It weighs only 2.6 oz and can be packed flat to 0.25 in. thin. Light a room of up to 100 sq. ft. by pressing power button once for low, twice for high, and three times to flash. PV solar panel can recharge 80% discharged batteries in 4.1 hours of direct sunlight. Made from water resistant and recyclable PET. Measures 4.33 x 4.33 in. open.