The Knog Blinder 4 O rear bike light is a great option for commuters wanting a simple yet effective safety light. The surface mounted LED’s pump out 44 lumen which is enough to be seen from behind at a distance.
You have a number of light modes to choose between including Steady, Fast Flash, Organic Flash 1 & 2 and Eco-Flash. Burn times vary between the light options but you can optimise for visibility or battery power depending on the conditions you’re riding.
Fitting and removing the Knog Blinder rear bike light takes seconds thanks to the silicone strap and will fit seat posts measuring 25 -32.5mm. Exceptional performance and a great price.
Knog Blinder 4 O Features
What are bike lights?
Bike lights are vital accessories which attach to your handlebars, seatpost, helmet, bag or jersey. Their function is simple – to help you to see and be seen.
Who needs bike lights?
Everyone needs bike lights! It’s a legal requirement to use front and rear lights on your bike between sunset and sunrise, but they are also useful when visibility is poor – in the fog for example.
What are the choices?
Light technology is ever evolving and the choice is enormous. Always think “the brighter the better” and look for a higher lumen output when choosing. There are lights that run on batteries or beams which can be recharged via plug or a handy USB socket (great for topping up at work). Some lights have battery packs and most have a selection of modes to choose from. You’ll definitely need the brightest lights if you ride wooded trails as you’ll really need to see where you’re going!
What should I buy with them?
Spare batteries are handy if your bike runs on these, as is a charger if it’s rechargeable. Spare mounts are always useful, especially if you have more than one bike. A helmet mount points the beam where you’re looking, rather than the direction your bike is pointing.
Don’t get caught out – a spare back up light is a great purchase in case your ride goes on longer than anticipated or the lights go out earlier than expected.
See our Lights guide for more.
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Please note: bulky products and bikes shipped to outlying UK regions are excluded from free shipping - Click here for more info.
To take the stress out of Christmas you can shop with us until the 21st of December, and although we're not predicting heavy snowfall, we recommend placing your orders before midday for guaranteed Christmas delivery.
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We will give you a full refund or exchange on any item that is returned to us unused/unfitted, in a resaleable condition and in its original packaging (where possible).
For hygiene reasons, we cannot accept returns of facemasks, undershorts or underwear if the item has been removed/unsealed from its original packaging.
For more information please visit our Returns & Warranty page.