USL-250 E-Lume 250


SKU: USL-250 / 713835993941

Quick Overview

The Serfas E-Lume Series light line was developed to be the best on the market at the very best value. These headlights will meet and exceed their expected lumen output while offering you all the features you’ve come to enjoy from Serfas lighting. Please welcome the new line of E-Lume Series lights, and be prepared to turn night into day.


396 in stock (can be backordered)




  • Compact Lightweight Aluminum Design
  • Super Bright (250 Lumens) Output
  • Water Resistant Rating: IPX4
  • New 3 Level Battery Life Indicator
  • Last Mode Memory
  • Max Charges Rate of 500mA
  • Charges from Dead to Fully Charge in 2.5 hours (Using 500mA Rated Charger)


  • Solid Modes: High (250 Lumens): 2.5 hrs, Medium (100 Lumens): 4.25 hrs, Low (50 Lumens): 7 hrs
  • Flash Modes: Daytime Flash (250 Lumens): 50 hrs, Low Flash (50 Lumens): 18 hrs
  • Weight: 142 Grams with Bracket
  • Battery: 1-Cell Li-Ion, 1400mAh


  • Micro USB Cord
  • Handlebar Mount


3 reviews for USL-250 E-Lume 250

  1. Matt

    I use this to commute 6 ish miles into and out of the city. The bike path at night is fairy dark in spots, and I was a bit concerned that this wouldn’t be bright enough. It is! Nice wide beam pattern, long battery life.

  2. Quintin Bressler

    I’ve only used this light a few times for daytime and nighttime riding, but can tell that this will be brightenough. I originally bought it as a light ‘to be seen’ but will also probably use to to see at night as well. Plenty bright enough!

  3. Jason Zeyer

    Just want to give a shout out to the Serfas company. I was out doing a nighttime trail ride. We stopped for a break and, when I went to get back on my trike, I swung my leg over the front boom and accidentally kicked the headlight (eLume 250) and broke the plastic headlight mount. I was able to zip-tie it back on to complete the ride. The next day, I emailed Serfas and inquired if I could buy just the mount and told them what happened (completely my fault). They just asked for a shipping address and sent me not one, but two complete mounting assemblies (in case my dumb *ss kicks it again!). Great customer service!! I will definitely keep them in mind for any other bike accessories I am looking for! As for the light, it was plenty bright enough for riding the towpath in complete darkness. And, as an added bonus, it can take good kick and keep on working! 🙂

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