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Milwaukee USB Rechargeable Hard Hat Headlamp

Brand: Milwaukee® Mfg#: 2111-21
Product#: 131211121
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Powered by REDLITHIUM™ USB, the Milwaukee® USB Rechargeable Hard Hat Headlamp delivers 475 lumens of TRUEVIEW™ High Definition output, and is capable of all-day runtime, over 2,000 recharges and 3X faster charging via USB. Optimized for use with hard hats, its slip resistant strap and clips provide easy and secure attachment.  A water, dust and drop resistant body and lens allows 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 31 hours of runtime.  The REDLITHIUM™ USB Battery can be recharged in the light via Micro USB or swapped out with additional REDLITHIUM™ USB Batteries for virtually no downtime.  The Milwaukee® USB Rechargeable Hard Hat Headlamp is covered by a limited lifetime warranty


  • Spot/flood mode: 475 Lumens- 2 Hrs flood high mode: 300 Lumens- 4.5 Hrs flood medium mode: 150 lumens- 8.5 Hrs Flood low mode: 25 lumens- 31 Hrs spot high mode: 300 lumens- 4 Hrs
  • Get 50 percent of a charge in under 30 minutes, 80 percent in under 1 hour, and a full charge of the REDLITHIUM® USB battery in 2 hours
  • 5 Light output modes for optimal brightness and runtime
  • 2ft Heavy duty micro-USB braided cord with metal ends limited lifetime warranty on light
  • 7-Position tilting light head for directing light
  • LED fuel gauge allows fast checking of REDLITHIUM® USB battery charge
  • 475 Lumens of TRUEVIEW™ High definition output
  • Clips and rubber grip for secure hard hat attachment
  • Internally charges REDLITHIUM® USB batteries through micro-USB port
  • IP54 Rated: Water and dust resistant
  • Flood, spot and spot/flood beam pattern options
  • 3X faster charge time: 2.1A charge rate
  • Two year warranty on REDLITHIUM® USB battery


  • Brand: Milwaukee®
  • Includes: USB Rechargeable Hard Hat Headlamp (2111-21), (1) REDLITHIUM™ USB BATTERY (48-11-2130), (1) 2FT Heavy Duty USB Cord
  • Length: 3.76 in
  • Width: 2.21 in
  • Height: 1.53 in