UST Tight Light LED Headlamp Compact, durable, multi-function headlamp shines a bright, clean 30 lumens of light; great for backpacking, camping, hunting, and more Adjustable, elastic cord for comfortable fit; handy clip for additional attachment options on gear, clothing, dog collars, and more Three long-lasting, unbreakable LED bulbs with five lighting modes (High, Low, Flashing SOS, Red, and Red SOS) IPX6 water resistance (storm water conditions); runs on two CR2032 batteries (included) Measures 1.25 x 1.25 x 1 inches (32 x 32 x 25 mm); weighs 1 ounce (28 grams)