Lumen 50S

(2 customer reviews)


The Lumen 50S is a hands-free wrist-mounted light. It has three modes: solid, blinking, and red blinking. It has an adjustable hinge which allows you to lay it flat against your wrist or stand it up at a 90 degree angle. The band can also be adjusted to be worn around your ankle. This small multi functional light can be used as a piece of safety gear and as a secondary light to aid your vision.

SKU: UA521BK Category:


  • Adjustable strap for wrists and ankles
  • Soft and comfortable band for no chafing
  • Adjustable hinge to angle the light to your needs
  • Powered off of 2 Coin cell 2025 watch batteries

Weight: .9 oz (26g)

Color: Black/Blue

Sizing Range: 5″-11″


Low Weight: Lightweight components and materials create an almost unnoticeable on-the-body feel without compromising durability.

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

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.





Additional information

Weight .056 lbs
Dimensions 9 × 7 × 3 in

2 reviews for Lumen 50S

  1. redultra13

    I use this wrist light when I run and ride at night. For riding I use it for signaling when I am going to turn. I just bought 2 more so I can wear them on my ankles and be more visible while riding. I highly recommend this product.

  2. Dandelion Dilluvio-Scott

    There are a few ultras that require a red blinky light to be worn in front and back of your vest. Blinky lights are typically of the clip on variety and I always worry that they’ll fall off in rough terrain and then I won’t be compliant with the race rules. This wrist light can easily be attached to a vest using a girth hitch, carabiner or zip tie making it impossible to loose it during an event. It is plenty bright too!

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