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Product Description

The Knog Blinder 4 is for riders who want a compact and powerful rear light to get them home safely. Weighing just 35g the Blinder 4 is 100% waterproof (ideal for winter riding) and comes with an inbuilt USB recharge system so you can plug in and charge while you work.

Emitting a powerful 44 lumen the Blinder 4 GT is bright enough for urban riding and comes with 5 light modes to choose from. Eco-flash will give you a max burntime of 50 hours while constant still has a long 5 hour burntime - long enough for commuting and recreational riding.

A silicone strap makes fitting and removal super easy so you can switch the Knog Blinder between bikes and remove for security. A very popular rear light amongst cyclists.

Weight: 0 kg

£5 Off Your Next Order - Review this product to get your voucher code Review

Knog Blinder 4 LED GT USB Rechargeable Rear Light Reviews

Overall Rating:5 - Rating: 5 / 5
Dont bother with other rear lights. Just buy this one.

Overall Rating:5 - Rating: 5 / 5
"Super Simple and Bright"
Bright and Simple means they work they get noticed which is all I need for these lights.

Overall Rating:5 - Rating: 5 / 5
"Quality light"
This light is superb very visible and keeps you safe. Plus you dont have to ruin the look of your bike in summer by leaving a holder on your bike

Overall Rating:5 - Rating: 5 / 5
"Perfect and simple"
Someone told me its the only rear light you need and they were so right. Small enough to leave on a bike all year and bright enough to see even in daylight. Usb charge from the built in connection is the icing

Overall Rating:5 - Rating: 5 / 5
"Excellent purchase"
Easy to attach. Very bright and an excellent price offered by Tredz. I'm now buying a front light to replace my Cateye. Sometimes experience a little difficulty establishing a connection on certain computers USB ports, but this has been easily solved by attaching via an USB extender. Overall a fantastic rear light

Overall Rating:5 - Rating: 5 / 5
"Well designed rear light"
This is a great rear light easy to switch between bikes no messing about with batteries just make sure you charge it up. Lasts for ages on the eco setting. Highly recommended!

Overall Rating:4 - Rating: 4 / 5
"Minimal and powerful"
Bought the front and rear lights blend in perfectly with my Bad Boy. No complaints USB rechargeable all you can ask for.

How do I apply for finance?

Spend more than £280 at Tredz and you can spread the cost. Pay monthly over 6-48 months, interest free

  1. Fill your basket with everything you want from Tredz and go to the checkout.
  2. During checkout, select the finance option you want as your method of payment.
  3. You will be sent to our finance provider’s secure server to complete your application.
  4. Finance provider V12 will use the information provided to make a decision and complete checkout if you are approved.

How do I get a Cycle to Work bike from Tredz?

It's as easy as 1, 2, 3

If your employer is already running a scheme, you’re just three steps away from receiving your new bike and equipment

  1. Email us with a list of items at
  2. We’ll send you a quote within 48 hours, which you pass on to your HR department.
  3. Your employer will order your Cycle to Work voucher. Once you receive it, send to us, then we’ll deliver your new bike and safety equipment.

We accept cycle to work vouchers from all these providers:

UK Delivery Information

We are committed to offering fast and free delivery, whether you're ordering bikes, accessories or clothing. Our standard delivery service is FREE to mainland UK, regardless of the size and value.

Please note: bulky products and bikes shipped to outlying UK regions are excluded from free shipping - Click here for more info.

International Orders

Country Small orders Bulky orders Large orders / bikes Delivery (working days)
Austria £7.99 £18.99 £29.99 3-4
Belgium £4.99 £14.99 £24.99 3-4
Bulgaria £7.99 £18.99 £29.99 5-7
Cyprus £14.99 £29.99 £89.99 5-7
Czech Republic £7.99 £18.99 £29.99 3-4
Denmark £7.99 £18.99 £29.99 2-3
Estonia £7.99 £18.99 £29.99 4-5
Finland £7.99 £18.99 £29.99 3-4
France £4.99 £14.99 £24.99 2-3
Germany £4.99 £14.99 £24.99 2-3
Greece £7.99 £18.99 £29.99 4-5
Hungary £7.99 £18.99 £29.99 3-4
Irish Republic £4.99 £14.99 £24.99 2-3
Italy £7.99 £18.99 £29.99 2-3
Latvia £7.99 £18.99 £29.99 4-5
Lithuania £7.99 £18.99 £29.99 4-5
Luxembourg £4.99 £14.99 £24.99 2-3
Malta £14.99 £29.99 £89.99 4-6
Monaco £7.99 £18.99 £29.99 2-3
Netherlands £4.99 £14.99 £24.99 2-3
Poland £7.99 £18.99 £29.99 3-4
Portugal £7.99 £18.99 £29.99 3-4
Romania £7.99 £18.99 £29.99 4-5
Slovenia £7.99 £18.99 £29.99 4-5
Spain £7.99 £18.99 £29.99 2-3
Sweden £7.99 £18.99 £29.99 3-4

Easy Returns

Simply return the items to us in their original, resaleable condition, and securely packaged, within 365 days of receipt.

Collect Plus

Easy as one, two, three

For items under £75 and 10kg, you can use the Collect Plus service by printing your label off online and dropping your package off at a local store.

Step one - Repackage your item and include a returns form

Step two - Buy and print a returns label

Step three - Take your item to your local shop, pay your £4.49 and get a tracking receipt

Tredz Online Sales, Castell Close, Swansea Retail Park, Llansamlet, Swansea, SA7 9FH
E-mail: | Tel: 01792 799508