TRIDENT® HEADLAMP DESCRIPTION: Includes three LEDs and a xenon bulb in the same reflector. Three-position lighting lets you select the best combination of lights for the task at hand. Powered by 3 "AAA" alkaline batteries (included) 300 mA xenon bi-pin bulb, plus three 100,000-hour life LEDs Xenon Bulb: 12 lumens measured system output; One (1) White LED: 9 lumens measured system output; Three (3) White LEDs: 24 lumens measured system output. 3-position lighting; 1) xenon bulb; 2) one LED; 3) three LEDs Spot to flood focus Adjustable elastic head strap and rubber hard hat strap 90 tilting head Runs up to 150 hrs (single LED) Facecap diameter: 1.86" Max. Width: 2.55" Max. Depth: 2.53" including head strap and mounting plate 4.64 oz.