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Knog Blinder Arc 5.5 USB Rechargeable Front Light

by KNOG
3.4 out of 5 stars 24 customer reviews

List Price: $119.95
Price: $80.51 & FREE Shipping. Details
You Save: $39.44 (33%)
Only 2 left in stock (more on the way).
Ships from and sold by Amazon.com. Gift-wrap available.
Black
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  • 1 x CREE XM-L2 LED with an elliptical beam of 16Degreex24Degree (H x W) that pumps out 550 lumens
  • Lithium polymer battery with an integrated USB charger all wrapped up in a waterproof aluminum and polycarbonate body and weighs 150g
  • Includes two straps (one for 22-29mm, one for 30-35mm), uses a stainless steel clamp, and features a swivel feature to better aim your light
  • Run time: high (steady) = 1.5hr, medium (steady) = 3hr, low (steady) = 6hr 4, flashing = 12hr, Charge time: 5-6hr
  • Features low battery LED indicator and a 5-6hr charge time
41 new from $64.99 3 used from $48.99
$80.51 & FREE Shipping. Details Only 2 left in stock (more on the way). Ships from and sold by Amazon.com. Gift-wrap available.

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Color: Black

Technical Details


Product Description

The Knog Blinder Arc 5.5 USB Rechargeable with its 550 lumens and up to 12 hours of run time, this light is perfect for almost any discipline. Also includes helmet mount and silicone USB extension cable.

Product Details

  • Shipping Weight: 9.6 ounces (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B00GQP8T6U
  • Item model number: LT8820-Parent
  • Average Customer Review: 3.4 out of 5 stars  See all reviews (24 customer reviews)
  • Amazon Best Sellers Rank: #256,264 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
  • Product Warranty: For warranty information about this product, please click here

Customer Reviews

Top Customer Reviews

Color: Black Verified Purchase
Disappointed in this light. I *really* wanted to like it because Knog absolutely nailed the minimalist look and design of the thing (right down to the packaging in which it ships), but in use I find: the light loosens from its mount VERY easily and is constantly in need of retightening with an Allen key; the slightest bump or imperfection in the road will knock it out of position and cause it to angle upward, resulting in my constantly having to make micro-adjustments; it needs to be recharged daily (I use it ONCE a day on a six-mile commute home in the evening); recharging is an all-day affair (no quick charges here). Beyond that, it gets the job done. BUT, if I could go back and do it all over again, knowing what I know now I probably would have gone with a different light.
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Color: Black Verified Purchase
I had slaved over what bike light to buy to keep me visible at night, and I finally settled on this guy. This light has a powerful, wide beam, but what really drew me to it was its simple, slick design. It is also remarkably easy to mount; the silicon strap and magnetic clasp are pretty brilliant. The light has four modes, three of which are designated by blue (maximum output), teal (medium), and green (low). The fourth is the "blinker" mode, which lacks an indicator.

I can't comment on the battery life because I've only taken it on short rides so far, but I will note that the USB charging functionality, while convenient, has me a little skeptical. After a full charge, the battery light on the Blinder will turn green, but if you turn on the light and quickly turn it off and then try charging it again, you'll find that the battery light goes red (indicating that it is charging) again. This would be normal if it weren't for the fact that it takes a long time for the charging light to go green again. For now, I'll assume that it's an indicator issue, as the battery couldn't possibly drain so much from turning the light on for a single second.
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Color: Black
This light is super super bright, and easy to carry and remove.

Knog customer support is awesome, although I think there might be a lost in translation thing going on. I didn't fully secure the bolt under the strap to the light, needless to say it went flying off of my bike. I lost the bolt. I contacted Knog, a day later they replied and said they would send me a replacement. No questions asked, no receipt needed, they paid for postage. I expected to receive a bolt. a few weeks later, I received a full new mount and some straps, which was great but no little bolt included. I contacted them again, and a few weeks later I finally received the small bolt. Anyway, no fuss, great customer service.

The only complaint I have is the awkward charging of the light. They include a few weird little usb cables, and conversion cables. The cable included is super short and doesn't really work in any of my computer USB situations. I typically charge this with a Jawbone wall charger, but the weight of the light will usually make the light fall out. I need to come up with a better way to keep this constantly charged.
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Color: Black
Really wanted to like this light, but there are some major design flaws happening.

The clasp mechanism is terrible for a couple reasons: it's not centered under the light, so it's front-heavy and nose dives if you hit a bump on the road (the problem is far more disastrous if you go out on the trails) being that there are different sizes for different diameter bars, I forced the smaller one around my bar hoping the additional tension would hold it in place. What instead happened was that the plastic clasp broke off. While knog does sell replacements for cheap, I've broken 2 of them so far. Yet another issue is that the clasp dated by means of a magnet. The magnet is cheaply glued in and falls out quickly. I've thus far kept a magnet in place, but I had to gorilla glue it in place myself after it fell out. As you might have guessed, I've had the light fall off my bars a couple times.

The electronics are also suspect: I've had mine shut off entirely when I've hit bumps. I was following a friend down a trail when it shut off and I had to glue myself to his back wheel (his light didn't malfunction) for the remainder of the very scary descent.

The light also doesn't hold a charge. I've used it for a quick 10 minute run to the store, turned it off and when I turned it on again the next day, the low battery light went on within 15 minutes.

I don't trust this light and I can't return it, so it's been relegated to helmet use only with a different light on my bars. It's a shame because it's a cool looking light and puts out a nice beam when it's behaving. I just can't trust it. Mind you, I bought this light as soon as it was released, so hopefully they've made some changes to the design
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Color: Black Verified Purchase
The amount of illumination it provides is quite good on dark and even some well lit city streets. I have two of these and used for commuting.

The major problem is that both do not hold charge. I need to charge daily and usually turns off at the end of my daily 8 mile commute. The duration is not even close to the published times and I've tried different chargers, etc. I'm returning both.
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Knog Blinder Arc 5.5 USB Rechargeable Front Light, Black
This item: Knog Blinder Arc 5.5 USB Rechargeable Front Light, Black
Price: $78.11
Ships from and sold by Amazon.com
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