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Knog Blinder Arc 5.5 USB Rechargeable Front Light

by KNOG
15 customer reviews

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  • Knog Blinder Arc 5.5 USB Rechargeable Front Light, Black
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About the Product

  • 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


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

  • Product Dimensions: 6 x 6 x 2 inches ; 8.8 ounces
  • 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: 3.1 out of 5 stars  See all reviews (15 customer reviews)
  • Amazon Best Sellers Rank: #153,480 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
  • Product Warranty: For warranty information about this product, please click here

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Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

1 of 1 people found the following review helpful By T.M. on August 21, 2014
Size: One SizeColor: 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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1 of 1 people found the following review helpful By Jason P Chiang on October 19, 2014
Size: One SizeColor: 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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Size: One SizeColor: Black
Crap. Little magnet holding the rubber holder falled out and had to be re-glued. Hex screw attaching the rubber holder to the light fell out. Rubber holder is holding poorly, the light (being on the heavier side) is constantly tilting down even on smoother road. All those little but important attachment details are designed astonishingly unreliably. And most importantly, battery lost ability to hold charge very quickly. After one year of not very frequent ride (because of the aforementioned problems) the battery does not hold absolutely anything. I have to admit that my Knog Blinder ARC fell to pavement (because of that lousy hex screw coming out) and I'm not ruling out the possibility that it could be the cause of the battery problem. But still, the bottom line: crap. Knog can produce beautiful design but its products tend to be unreliable (my second experience is Strongman U-lock).
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Size: One SizeColor: 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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By SB on August 11, 2015
Size: One SizeColor: Black
The strap to secure the light to the handlebars is not adjustable and too flimsy for such a heavy light. As others have mentioned, as soon as you hit any kind of bump, the lights moves up or down so you are constantly adjusting the tilt while riding. I cannot comment on the battery life because the tilt issue was such an annoyance (and a safety issue while riding), I never used the light and it sat for months in a drawer unused. The light itself is nice and puts out a nice beam but the attachment strap needs a complete redesign.
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Size: One SizeColor: Red Verified Purchase
Hands down, the best headlamp I've ever used! Lives up to its name! 3 brightness settings plus flash and an appropriately focused beam for seeing the road or trail ahead (as opposed to simply a flood of light). Battery life is incredible! I've used it 5 times for neighborhood rides on the first charge, so far...
Look no further. This is the one you've always needed.
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By D. Rutherford on November 20, 2014
Size: One SizeColor: Black Verified Purchase
Great for the bike. Very bright. A bit heavier than others, but obvious quality. You need to have a horizontal place to mount it on your handlebars. It swivels side to side, but does not articulate in other directions. Fast charge. Lasts a long time. Did I mention... BRIGHT!
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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
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