The Nebo Einstein 250 is a light, battery-powered headlamp with both a spot and a flood beam. The white LED spot gives up to 250 lumens with a reach of about 139 m for trails and distance, the C.O.B flood gives an even 80 lumens for camp chores, and red modes, including Direct-to-Red start-up, protect your night vision. In all there are seven modes with variable dimming, and runtimes go up to about 34 hours on low flood. The head tilts to aim the light, and a one-size head strap with a top strap keeps it steady while hiking or jogging. The durable ABS body is IP44 water resistant. It runs on three AAA batteries, which are included, so it is ready out of the box. It weighs about 130 g. In the box: headlamp, adjustable head strap and 3 AAA batteries.