SKU: 73540015971

ULTRASPIRE - Lumen 600 4.0 Waist Light

Sale price$598.05 Regular price$664.50
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Ships within 48 hours · Estimated delivery Aug 22 - Aug 27

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Description

ULTRASPIRE - Lumen 600 4.0 Waist LightDESCRIPTION: 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

DESCRIPTION:

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 includes 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 now features a USB Type-C charging port for a significantly quicker charge. Includes a USB Type-C charging cable.

Recommended Use: 

Super bright, full-feature light with great stability and comfort plus the ability to carry other essentials including large smartphones.

Burn Time: 6 – 14 hours

Details:

WideBeam™

Like daylight. Let 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 which promotes a healthy and natural breathing pattern.

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™

Intuitive settings, large buttons, and quick-release buckles. Easy operation for fatigued minds in extreme circumstances.

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 better 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.

Specifications:

Fit: Unisex
Size(s): 26″-38″
Color option: Black/Red
Capacity: 61 c.i.; 1L
Lumen Output: 600
Battery: 18650 3.7V (rechargeable)
Water Resistance: IPX7

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 73540015971

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Justin
West Palm Beach, US
★★★★★ 5
Great Socks.
Color: (002) Black / Black / Halo Gray, Size: Large
These are awesome and have become my favorite socks to have for everyday wear. I have since bought the hightop version as well and there are just as equally great. They fit almost like compression socks. Color does fade a bit after repeated washing but not enough to make a big difference in appearance. They have lasted for a long time and still going. They have lots of cushion which makes it very comfortable to wear.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 4, 2026
K
Verified Purchase
kimberly jumper
Battle Creek, US
★★★★★ 5
Great Socks
Color: (001) Black / Black / Castlerock, Size: Large
I keep ordering these over and over again. They fit well, and are soft and comfortable. My feet don't sweat like crazy while wearing them. The cupped heel makes them fit even better. They hold up to everything from everyday use to active lifestyles.
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Reviewed in the United States on April 9, 2026
J
Verified Purchase
jeaton
Phoenix, US
★★★★★ 5
Solid under armour sock
Color: (001) Black / Black / Castlerock, Size: Medium
Good socks. Very soft. Not too thick. No seam discomfort. Hope they hold up.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
N
Verified Purchase
Nelson Giovanny Murcia
Birmingham, US
★★★★★ 5
Talla perfecta
Color: (001) Black / Black / Castlerock, Size: Large
Excelente producto
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
R
Verified Purchase
Rachel D.
Whiting, US
★★★★★ 4
Good sock but thick
Color: (001) Black / Black / Castlerock, Size: Small
These Under Armour socks are high quality and definitely durable, with great cushioning and a solid fit that stays in place throughout the day. The material feels supportive and they hold up well after multiple washes without losing shape. My only minor downside is that they’re thicker than I expected. They feel more like a heavy-duty training sock, which is great for colder weather or intense workouts, but a bit bulky for everyday sneakers or warmer days. That said, the quality is excellent, and if you prefer a thicker, more cushioned sock, these are perfect. Just something to be aware of depending on how you plan to use them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026

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