Weighing only 2.29 oz, the HA15 UHE is an ultralight headlamp perfect for backpacking when every ounce matters. Yet, it still can achieve a maximum runtime of 82 hours on its lowest setting. The HA15 UHE is also rated IP66 waterproof and can withstand impacts of up to 1 meter, making it a reliable companion in any environment for job sites, everyday tasks, camping, hiking, and more.