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The kind folks at Seattle Bicycle Supply (SBS) offered us a chance to try out their house-brand XLC lights a few months back. As lighting is pretty important for many commuters — besides keeping you safe, front and rear lights on your bike also keep you LEGAL in most municipalities — we jumped at the chance to take these lights for a spin. A courtesy pair appeared in the mail a few days later, and we were off.
The set we got is the XLC 2-LED “Bright Flex” light set…a lightweight pair of lights for the front and rear of just about any bike:
The lights are simple: acrylic bodies and lenses encased in a soft silicone shell. These lights mount without tools; part of the silicone shell forms a stretchy strap that hooks to a protrusion on the front of each light. Each light contains two LEDs…red ones for the back and white ones for the front. Let’s make something clear right up front: these are “to be seen” lights, and the LEDs don’t have any impressive lumen ratings listed on the SBS website. You will be noticed by other road users, but these lights will NOT illuminate the street in front of you in any appreciable way.
The strap is stretchy enough to go around most seatposts and handlebars, even the newer oversized 31.8mm bars. The rear light cannot be aimed, so the seatpost angle may affect the rearward visibility of the light. Here, take a look at my setup:
The light is still pointing backwards, but perhaps not at the very best angle for optimum visibility. It is still noticeably bright from a couple hundred feet back, though.
Each light is powered by a single CR2032 battery, a fairly common size. The lights are claimed to have a run time of 40 hours steady and 80 hours flashing — I’ve had them for six or seven months of regular use and they both continue to shine brightly. Each light has three modes, cycled by pressing a covered button on the top of the body : steady, flashing and strobe. The strobe pattern is pretty eye-catching, so that’s the setting I usually run mine on.
XLC describes the lights as “water resistant”…and that may be true in some locales, but I got caught out in a Florida rainstorm on my very first ride with them. When the front light malfunctioned the next day, I was surprised to discover about a half-teaspoon of water inside the battery compartment. I thought that with the tight silicone housing and vinyl battery cap under the body of the light, these things could shrug off water better than that. Once I poured the water out and let the casing dry, the light started working again, but to this day it doesn’t reliably cycle through all three illumination settings on the first try. I also noticed some corrosion on the contacts between LEDs and the circuit board inside the acrylic body.
Otherwise, there’s not a lot to go wrong with these lights. The body and shell are rugged, the on/off button is protected by the silicone shell and the strap hasn’t stressed or cracked the way the rubber o-rings that come with other lights might.
The Bright Flex lights are not terrifically bright, nor are they waterproof enough for daily use, so it is hard to recommend them as primary lights for nighttime commuters. But here’s the thing…with a retail price of as little as $13.00, they are inexpensive “backup insurance”. I’ve used them in that role in three ways. First, when I go out for early or late road rides on my road bike, I stuff these lights into a jersey pocket and snap them on when they’re needed. Second, I keep them in my messenger bag for late night backup…if the batteries in my primaries fail, I can always get these out and get home safely. Third, these make great “loaners”; we’ve all been out at night with someone who forgot their own lights, and these are great to have on hand to let a fellow rider borrow. Why, my own set of Bright Flex lights have been loaned out three or four times in this way, and all parties involved got home safe!
So, for the price, these are good lights for backups. Don’t try to scuba-dive with them, don’t expect them to illuminate every pothole on your 50MPH+ downhill commute, and don’t forget to let your buddy borrow them if they forgot their own lights. As long as you keep those three caveats in mind, you can’t go wrong with these XLC lights.
XLC lights and many other products in the SBS family can be ordered through your local bike shop, and you may also find many of these items online. This particular light set also makes a great stocking stuffer for the cyclist(s) in your life.
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