https://www.mccoys.com/shop/p/3875317-052303-21/milwaukee-redlithium-2163-21-usb-hard-hat-headlamp-100-400-600-lumens-5-9-20-hr-run-time
REDLITHIUM 2163-21 USB Hard Hat Headlamp, 100, 400, 600 Lumens, 5, 9, 20 hr Run Time
Sku: 3875317-052303-21
$73.01
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Estimated Arrival On: 01/08/2026
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 deg of mobility and five different output modes. This headlamp is IP54-rated as weather and dust-resistant and survives impacts from up to 2 m to withstand harsh job site conditions. The REDLITHIUM™ USB hard hat headlamp is powered by the REDLITHIUM™ USB 3.0 AH 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.
- Detachable for tasks and easy charging
- Button provides battery charge status
- 2 ft heavy-duty USB-C charging cord
- 6 ft drops and IP54-rated dust and water-resistant
- Get 50% of a charge in under 30 min, 80% in under 1 hr and a full charge of the Redlithium™ USB battery in 2 hr
- Four hard hat clips and rubber grip for secure hard hat attachment
Lumens
100, 400, 600
Run Time
5, 9, 20
Dimensions
2.12 in L x 4.05 in W x 1.34 in H
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