Features and Benefits: This ultra-bright LED headlamp lets you choose 1, 3 or 7 LEDs.; Powered by 3 "AAA" alkaline batteries (included); Seven 100,000 hr. life ultra-bright, white LEDs; 50 lumens typical (7 LEDs), 25 lumens typical (3 LEDs), 9 lumens typical (1 LED); Runs up to 150 hrs. (single LED); Features 7 ultra-bright white LEDs. Choose from 3 modes: 1, 3 or 7 LEDs. 50 lumens (7 LEDs), 25 lumens (3 LEDs), 9 lumens (1 LED). Runs 150 hrs. (single LED). Adjustable elastic head strap and rubber hard hat strap. Powered by 3 "AAA" alkaline batteries (included). 90? tilting head. Available in yellow.