Cygolite Expilion 680 USB Rechargeable Headlight

Priced: $99.95 - $119.95 Rated:   - 5 stars out of 5 by 2 reviews.
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Cygolite Expilion 680 USB Rechargeable Headlight -

CygoLite ExpiliOn 680 USB front bike light puts a small-yet-powerful 680-lumen beam atop your handlebar for compact and easy illumination for bike commuting, trail riding or evening cruises.

Made in USA.


  • Quick-release mount on the CygoLite ExpiliOn 680 USB light fits 25.4 - 31.8mm handlebars


  • Superbright Cree LED puts out a powerful maximum of 680 lumens and is paired with precise optics for a beam pattern that's optimized for cycling
  • Quick-release Li-ion battery stick is easy to swap-on-the-fly
  • Run times vary between 2.3 hrs. (boost) and 22 hrs. (day flash)
  • 2-in-1 SteadyPulse illumination combines steady brightness to see by and an alerting flash to be seen
  • SteadyPulse illumination mode combines steady brightness with an alerting flash, letting you see what's ahead of you while simultaneously letting others know your presence
  • Locktite tool-free handlebar mount included
  • CygoLite ExpiliOn 680 USB bike light comes with a battery stick, USB cable, wall charger and handlebar mount
  • Illuminated control button features built-in power indicators for easy reference and access; includes low battery and charging status indicators
  • Removable, quick-release lithium ion battery stick can be charged via computer USB port or an electrical outlet; charge time of 5 hrs.
  • Aluminum bezel helps protect light and improves durability; water-resistant design protects light from inclement conditions
Mountains Plus Outdoor Gear
The Expilion series raises the bar for one-piece lighting systems.
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Average Price History: Price History
Review RatingNumber of Reviews
4 constant lighting modes:boost, high, medium and low
Batteries:Lithium ion
Battery life flashing:22 hours
Battery life on high:2.3 hours
Battery life on low:9 hours
Battery mount:Integrated unit
Bulb type:LED
Charge time:5 hours
Features 8 Lighting Modes:(5 brightness and 3 special) Medium, High, Boost, Low, 2-in-1 SteadyPulse, Day Flash, Walk, and SOS
Four special lighting modes:2-in-1 SteadyPulse™, day flash, walking and S.O.S.
Headlight mounting:Handlebar
Integrated battery:Yes
Max light output (lumens):680 lumens
Number of bulbs:1
Weight:140 grams

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Cygolite Expilion 680 USB Rechargeable Headlight Reviews:


Excellent light

I have used Planet Bike one and two watt lights which I liked, but I wanted something brighter. I was hesitant about rechargeable lights because of short run times and some are not rain resistant. With the 680 on medium I have 3 hours of bright light on the darkest streets and bike paths while riding at 15 mph. I really like the steady pulse mode which gives a steady and pulse light at the same time. There are 8 modes including a very bright pulse for daytime use. The light is water resistant and the battery stick can be exchanged in seconds for another one, available through the manufacturer website.
DeanAZ at REI on 10/10/2013

Great for commuting in total darkness

A good portion of my commute goes on trail or street that is surrounded by tall trees and does not have street lights. My department store bike light did not provide enough visibility on the trail to ride at a decent speed. The medium setting on this light is more than adequate for this, and the high and "boost" settings are even brighter. Reflective street signs shine over a block away. I consider this money well spent.
CharlieBikecommuter at REI on 10/10/2013