UltrAspire  Lumen 400z 2.0 Waist Light

Color: Black/Red
Size: One Size
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Throwing up to 400 lumens onto the trail, the UltraAspire Lumen 400z 2.0 waist light can be tilted up and down, and is adjustable between spot and flood lighting giving you plenty of versatility.


  • Features UltrAspire 3D Lighting™, which casts shadows across uneven surfaces, giving you a better understanding of your terrain
  • Large button lets you easily adjust between high, medium, low and blinking settings and now also includes a battery indicator light
  • When toggled, the battery indicator light quickly illuminates green, gold or red to indicate power level
  • Includes a sweatproof pocket that can hold a large cellphone or other essentials
  • Includes 1 UltrAspire rechargeable 18650 battery and features a USB Type-C charging port for a significantly quicker charge; includes a USB Type-C charging cable
  • WideBeam™ lets your eyes roam freely without adjusting between light and dark areas; even lighting eliminates headaches and tunnel vision
  • Race Fit™ conical shape, Fatigue Free™ buckles and limited stretch elastic ensure a snug and stable fit that promotes a healthy and natural breathing pattern
  • Fatigue Free intuitive settings, large buttons and quick-release buckles allow easy operation for fatigued minds in extreme circumstances
  • 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
  • Proportional weight distribution and conical belt shape create a balanced load and a no-bounce ride
  • AutoCool™ heat-dispersing fins mounted in and around the light passively dissipate heat, keeping the light cool and efficient during heavy use
  • EnduraLight™ sturdy construction and aircraft-grade aluminum provide excellent durability and improved hot and cold tolerance while reducing overall weight
  • PerfectAngle™ easily adjust up, straight or down to suit your terrain; illuminate your path while keeping your head and body in a natural running position


View all UltrAspire LED Headlamps

Technical Specs

Item #225136
Best Use


Bulb Type


Bulb Detail


Beam Type


Max Light Output (Lumens)

400 lumens

Light Output

High: 400 lumens; medium: 200 lumens; low: 100 lumens

Beam Distance


Brightness Levels




Average Run Time

High: 6 hrs.; medium: 9 hrs.; low: 14 hrs.

Regulated Output





18650 rechargeable lithium ion


5.5 x 5 x 3.5 inches

Water-Resistance Rating


Weight With Batteries

6.7 ounces

4 reviews with an average rating of 5.0 out of 5 stars

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