Energizer 77 Inch LED Solar Lamp Post (Black, 2 Pack) Crystalline solar panel absorbs sunlight during the day to recharge the batteries for use at night Lights automatically turn off and on based on the surrounding light Lightweight durable resin and metal construction with glass lens weighs less then 4 pounds Each light includes 4 anchor bolts, ground stake, and a 700mAh Lithium-Ion battery Includes 2 lamp post lights; Each light measures 77 inches tall