Primus Water Resistant Polaris XL LED Lantern - w/3 D Batteries 160 Lumens Five brightness settings from 15 to 180 lumens Built-in USB port for charging handheld electronics Water resistant + Requires four "D" batteries (included) Batteries provide up to 23 hours of use on high and 450 hours on low Hook at top can be used with a carabiner for easy hanging