Promar High Power L.E.D. Zoom Headlamp features 1 super bright 180 lumen bulb, delivering high output illumination with efficiency. Far/Spot beam settings allow user control over battery life and a unique zoom function enhances and focuses beam in order to pinpoint and highlight distant objects. Operates on 3 AAA batteries. When you are on the water fishing at night, you need the Promar High Power L.E.D. Zoom Headlamp to be productive.