4 Built-in LED Lights Hat with LED light has 4 built-in LED lights, providing 120 Lumen and light up to 30 feet away. It directs the directional light to what your eyes are looking at. You can wear it outside for hunting, camping, travel, running, walking, auto repair, anywhere you want to work lighting and free your hand. .3 Adjustable Brightness You can adjust the brightness by pressing the button. There are 3 levels for you to choose the most suitable brightness. It can last up to 10 hours in the lowest level, 4 hours in medium level and 2 hours in the highest level. .100% Acrylic Fiber .Fastening: Pull On .Minimal . .Beanie Hat with Light .