POWERCAP LED Beanie hats combine Patent Pending LED Technology with a premium compression fleece beanie style hat to provide you with the prefect hands free flashlight. The soft, moisture wicking lining will pull moisture away from your head and keep you warm and dry. The 4LED's provide 48 lumens of light with a easy on/off switch hidden in the band. You'll notice 2 of the LED's are angled down at 55 degrees to light up where your hands are for close up tasks, while the other 2 LED's are aimed forward to light the distance up to 42 feet away. 4 CR 2032 Coin Cell batteries hidden in the band provide up to 43 hours of life and are easily replaceable.