Headlamp includes a Cree R2 LED that outputs 150 lumens and throws a beam up to 100m for stunning illumination ideal for tasks close at hand. 3AAA alkaline batteries are included provide up to 3 hours on low and 1.5 hours on high runtime. The headlamp has the extendable head in order to give options to adjust lenses. With its high grade aluminum body, the light is perfect for construction, working force or any other outdoor sports.