Don't let the compact size fool you, this little guy holds a lot of power. The Black Diamond Spot 400-R Headlamp is rechargeable and has a maximum output of four-hundred Lumens! This lightweight lamp features a recycled elastic headband that's made with next-to-skin Repreve fibers for enhanced comfort. The integrated battery meter display shows the battery percentage so you know when it's time for a recharge. Brightness Memory allows you to set your preferred output without having to adjust the settings with each use. It's small enough to fit into a pocket and powerful enough to light the darkest of trails.