Our MILWAUKEE® REDLTHIUM™ USB Hard Hat Headlamp is 20% LIGHTER WEIGHT, BRIGHTER, and offers MORE RUNTIME. This high output, compact headlamp is all powered by the REDLITHIUM USB Battery. This rechargeable headlamp is a lightweight and compact design that delivers 600 lumens of TRUEVIEW™ HIGH-DEFINITION OUTPUT with hybrid, spot, and flood modes. The headlamp easily detaches from the bracket for easy charging and to help get light into those hard-to-reach places. You can now optimize the position of the light with 180 degrees of mobility and 5 different output modes. This headlamp is IP54 rated as weather and dust resistant and survives impacts from up to 2 meters to withstand harsh job site conditions. The REDLITHIUM™ USB 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 REDLITHIUM™ USB Battery can be recharged in the flashlight via USB - C or swapped out with additional REDLITHIUM™ USB Batteries for virtually no downtime. The REDLITHIUM™ USB Hard Hat Headlamp is covered by a limited lifetime warranty. Features: 5 Output Modes: Hybrid: 600-Lumens- 5 Hours; Flood High: 400-Lumens- 9 Hours; Flood Low: 100-Lumens- 20 Hours; Spot High: 400-Lumens- 9 Hours; Spot Low: 100-Lumens- 20 Hours 6FT Drops & IP54 Rated: Dust & Water Resistant Detachable For Tasks & Easy Charging Get 50% of a Charge in Under 30 Minutes, 80% in Under 1 Hour, and a Full Charge of the REDLITHIUM™ USB Battery in 2 Hours Button Provides Battery Charge Status 4 Hard Hat Clips and Rubber Grip for Secure Hard Hat Attachment 2FT Heavy Duty USB-C Charging Cord Limited Lifetime Warranty on Light Two Year Warranty on REDLITHIUM™ USB Battery Specifications: Tool Warranty: Limited Lifetime Warranty, 2 Year Warranty on REDLITHIUM USB 3.0AH Battery Power Source: Cordless Weight: 0.33 lb Length: 2.12 in Height: 1.34 in Width: 4.05 in Includes: (1) REDLITHIUM™ USB Hard Hat Headlamp(2163-21) This is the replacement for Milwaukee item 2111-21. Milwaukee REDLITHIUM™ USB Hard Hat Headlamp 2163-21