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The Lumen 600 4.0 continues to expand on the functionality and versatility of the best-selling predecessor, the Lumen 600 3.0. This patented design features UltrAspire 3D Lighting which casts shadows across uneven surfaces giving you a better understanding of your terrain. It has a wide flood cone that provides 600 lumens of Steady Beam even lighting for the most natural running experience out of any light. The Lumen 600 4.0 comes with a removable pocket when capacity is needed. This light features our Race Fit which is a fatigue-free buckle system allowing you to easily undo the buckle, and a conical belt which is made of limited-stretch elastic providing a more natural breathing pattern. The power button also include a battery indicator light that when toggled on quickly illuminates green gold, or red indicating battery level. This waist light includes one of our UltrAspire rechargeable 18650 batteries and features a USB Type-C charging port. Includes a USB Type-C charging cable.



  • Burn time: 6-14 hours
  • IPX7 Waterproof rating
  • WideBeam™: Like daylight. Even lighting eliminates headaches and tunnel vision
  • Race Fit™: Conical shape, Fatigue Free buckles, and limited stretch elastic ensure a snug and stable fit
  • Low Weight™: Lightweight components and materials create an almost unnoticeable on-the-body feel without compromising durability
  • Steady Beam™: Prevents eye fatigue by maintaining a steady lumen output that does not dim until the battery is very low
  • Stable Ride™: Proportional weight distribution combined with our conical belt shape create a balanced load and a no-bounce ride
  • Fatigue Free™: Easy operation for fatigued minds in extreme circumstances
  • AutoCool™: Heat dispersing fins mounted in and around the light passively dissipate heat
  • EnduraLight™: Sturdy construction and aircraft grade aluminum provide better durability and improved hot and cold tolerance while reducing overall weight
  • PerfectAngle™: Easily adjust up, straight, or down to suit your terrain
  • Unisex fit



  • Size: 26"-38", adjustable
  • Color: Black/red
  • Capacity: 1L
  • Lumen Output: 600
  • Battery: 18650 3.7V (rechargeable & included)

UltrAspire Lumen 600 4.0 Waist Light

  • To prevent light from overheating, (and a potential fire/burn hazzard), remove batteries &/or disconnect power cable when storing light in a pack. Especially important for higher lumen lights! 

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