I received two lanterns with batteries. Unscrew a single cover to insert the batteries, size AA, of which 3 are required for operation. Once installed, simply pull up on the sliding top using the chrome handles and the lantern comes alive. I took mine in the hot tub, under water, floating in the water, and sitting on the deck. I also left it out in the rain. No worries, the lantern kept right on working, even after the interior filled with water.Very light in weight, yet strong. Not made from aluminum, but instead a type of nylon/plastic material that can be handled very roughly without issue. The brightness isn't blinding but is plenty to read by, find gear, or just use on a table while eating a meal after sunset.Overall, a great lantern. The price is great. I keep mine ready in case of power failure, and take a couple when I go camping, just to have that extra light available.