The MILWAUKEE REDLITHIUM USB Hard Hat Headlamp offers high output, secure attachment and is powered by REDLITHIUM USB. The hard hat light delivers professional 475 lumens of TRUEVIEW High Definition Output and is capable of all-day runtime, over 2,000 recharges, and 3X faster charging via USB. It is optimized for use with hard hats with its slip-resistant strap and clips for easy and secure attachment. The water, dust, and drop resistant body and lens allow it to withstand the toughest conditions. Get maximum control over output, beam coverage, and runtime with five different modes, flood, spot and spot/flood beam patterns, and up to 33 hours of runtime. The USB Rechargeable Hard Hat Headlamp is powered by the REDLITHIUM USB 3.0AH Battery, providing all-day run-time, more recharges, and 3x faster charge time. The Milwaukee REDLITHIUM USB Battery can be recharged in the flashlight via Micro USB or swapped out with additional REDLITHIUM USB Batteries for virtually N downtime. The Milwaukee REDLITHIUM USB Hard Hat Headlamp is covered by a limited lifetime warranty.