There are no fancy bells and whistles on this headlamp. It’s simple lightweight and extremely compact. The four white LEDs combine to produce 10 lumens of light over a 5-hour run time. With durable ABS plastic construction, this light is not only rugged, but it’s also weather resistant. The articulating body allows you to adjust the vertical illumination focal point of the light. Runs on two AAA batteries (not included). Weight: 2.2 oz.