Just as my Knog Skink LED Rear Light decided it no longer wished to serve me, and packed up, leaving me riding home with my front light on the rear of the bike, Knog got in touch with me about the Knog Blinder 4V.
Would I like to test it out?
I certainly would, as I needed a new light!
The Knog Blinder 4V is one of Knog’s newest bike lights. It’s so new in fact, that as I sit here typing this post with the Olympics on in the background, you can’t even buy one.
Knog will be introducing these for around £30 at the end of August, in eight pretty colours.
When they finally arrive to the shop shelves will they be worth a purchase?
Let’s start off with the obvious good things. The Knog Blinder 4V is small, bright, it’s quick and easy to install without any tools and it’s USB chargeable. These are the things I love about most the Knog lights.
Let’s start with the attachment via the silicone strap. Unlike previous models I’ve tested, there’s a plastic clip that snaps shut. This works really well. However, there is a limit to how wide a seatpost this will attach to. If you’ve got an unusually shaped one, then you may wish to reconsider. According to Knog, it should fit 22mm to 32mm seatposts.
Once again, the Knog tool less installation design is great for anyone with more than one bike.
The Knog Blinder 4v is USB chargeable. A small USB attachment pops out from the unit and plugs in to your laptop. Except, there’s an issue here. When I tried to plug it in to my laptop, I couldn’t. Due to the design of the unit, I had to lean my laptop off the side of the desk to plug it in.
This is not ideal but obviously won’t be a problem for everyone. In the end, I attached the Knog Blinder to the plug that comes with the iPhone.
While the bike light is charging, you’ll see a red light. This changes to green once it is fully charged. The red light also appears when the battery level is low.
The Knog Blinder 4V features four different lighting modes. Constant, flashing, strobing, top to bottom and outside light then inside flashing. The strobing mode is very attention grabbing so it’s a good one to use on your bike.
The light delivers a total of 44 Lumens. This is less than the 60 Lumens provided by the Knog Skink however, it’s still impressive and in practise it is still really bright.
The Knog Blinder promises 3 hours of light on the steady mode and up to 50 hours on the flashing modes.
To turn on the light you need to hold down the button for two seconds. This helps reduce the chances of the light turning on by mistake while it’s in your bag.
Overall, the Knog Blinder is really excellent. At £30 it has to be. Should you buy it? Possibly. I’d be tempted to also take a look at the Knog O Blinder. The square design delivers 80 Lumens of light – which is extremely bright.
The only thing that worries me about the Knog Blinder is that it will follow the same path as my Knog Skink. If it does, Knog do offer a 2 year guarantee so it would be easy to replace. Unfortunately, I can’t comment on the long term quality of the Blinder 4V but I’ll report back if there are issues.
Checkout the Knog website for more details on the Knog Blinder.
Update 1: Waterproofing
A number of people asked about waterproofing. I ran the light under the shower for two minutes and it is still working fine. Not a scientific test perhaps, but a good sign.
Update 2: Flashing modes
Quick video above that shows the different light modes (and waterproofing).
Update 3: Bike light during the day
Question in the comments: Would this bike light be useful during the day? This isn’t something I’d personally use it for. I believe the Knog O Blinder may be more appealing, as it delivers more Lumens.