This is a marker light, not a flashlight. It throws light in every direction rather than a beam, and its job is to make you findable: UST rates it visible up to 3.4 miles on a dark, clear night. It goes on a pack, a PFD or a jacket.

Specifications

• Visible up to 3.4 miles (5.5 km) on a dark, clear night
• 360-degree omnidirectional light
• Runtime up to 17 continuous hours
• Runs on 2 × AAA — batteries not included
• IPX7 — withstands immersion to 1 m for 30 minutes
• 4.95 × 1.0 in (126 × 25 mm)
• Weight 1.8 oz (51 g) with batteries
• Twist on/off
• Lanyard cord and hook-and-loop strap; no clip

UST publishes visibility distance rather than a lumen figure for this light, so no lumen number is listed. If you want the longer-running, Coast Guard-relevant option, the See-Me 1.0 LED Strobe runs 44 hours and exceeds the USCG one-nautical-mile requirement — it reaches less far but lasts far longer.

Warranty

UST covers its own-brand products with a Limited Lifetime Warranty against defects in materials and workmanship. It excludes batteries, consumable and single-use items, normal wear, cosmetic damage, commercial use and unauthorized repair, and it runs to the original owner with proof of purchase, US residents only.