Don’t be fooled by the small size and light weight of this sturdy headlamp. Its bright white Maxbright LED can cast a 50-lumen beam precisely where you want it. And it also has a red Ultrabright LED for seeing in the dark without compromising your nightvision. Adjust the headband for optimal comfort. Run time is up to 146 hours on two AAA alkaline batteries (included) or lithium batteries (not included). Weight: 2.25 oz.