When you want something done right you do it yourself. That's why we developed the Leatherman Serac S3 LED flashlight with 100 lumens, one battery, premium materials, and superior technology. Simply put, the size to performance ratio is unmatched for the price. Would you expect anything less from Leatherman? Features: 100 (high) | 43 (med) | 7 (low) Lumens 1hr (high) | 4 hrs (med) | 36 hrs (low) Battery Life (Tested with CR123 Lithium Battery) 3w LED 6061-T6 Hard-anodized Aluminum Body Stainles