Choosing your bike light

How to choose your bike light: see the road, and be seen

Good lights change the way you ride after dark. On a lit city street, they make you visible to drivers, pedestrians and other cyclists. On an unlit dyke road or forest path, they let you see where you are going. Choosing the right set comes down to three questions: where you ride, how you want to charge your lights and where you want to mount them.

In the Netherlands, as in most European countries, a white or yellow front light and a red rear light are required when it is dark or when visibility is poor. Beyond the rules, a well chosen light is simply one of the most effective safety upgrades you can make to any bike.

Be seen or see the road

Light output is expressed in lumens. The right level depends on your route rather than on a single number.

• Lit city streets: your priority is to be seen. A compact front light of a few dozen to around 100 lumens and a bright rear light are usually enough. Wide side visibility matters at junctions and roundabouts.
• Mixed routes and suburban roads: choose a front light of roughly 200 to 400 lumens so you can spot potholes and kerbs in good time.
• Unlit roads, gravel and trails: a front light from 600 lumens upwards gives a beam you can genuinely ride by.

At the rear, more power is not always better in town: a clearly visible light with good side coverage is often more useful than raw brightness.

How your lights are powered

• USB rechargeable: the most popular choice for daily riding. No batteries to replace, easy to charge at work or at home, and most models show the remaining charge.
• Battery powered: practical as a backup or for occasional use, as long as you keep spare batteries at hand.
• Dynamo: always available as soon as you pedal, ideal for city bikes that are ridden every day.
• E-bike lights: powered by the bike's own battery, so you never need to think about charging them separately.

Mounting and convenience

Removable lights with a silicone strap or quick release mount are easy to take with you when you park in town, which reduces the risk of theft. For the front, the handlebar is the usual position. At the rear, the seatpost places the light high enough to be seen from a distance. Some systems also offer helmet mounts for an extra light at eye level.

Our selection by type of riding

• Everyday city riding: compact USB lights such as the Knog Plus, the Knog Frog or the Knog Blinder Mini range, small enough to stay on the bike or in a pocket.
• Rear visibility: the Knog Lil' Cobber, Mid Cobber and Big Cobber wrap light around their curved lens for strong side visibility.
• Longer commutes and unlit roads: the Knog Blinder Road 400 and Blinder Road 600, paired with the Blinder Road R150 at the rear.
• Gravel, touring and night rides: the modular Knog PWR 1000 Road and PWR 2000 Mountain.
• Electric bikes: the Knog Blinder E, designed to run from your e-bike's battery.

Browse the full range in our bike lights collection, or filter by USB rechargeable, battery powered and dynamo lights.

Frequently asked questions

How many lumens do I need for cycling in town?

On lit streets, a front light of a few dozen to around 100 lumens is enough to be seen. If part of your route is unlit, choose at least 200 to 400 lumens.

Are rechargeable lights better than battery lights?

For daily riding, yes. USB lights are cheaper to run and more convenient. Battery lights remain a good backup to keep in a bag.

Can I use a separate light on my electric bike?

Yes. Any bike light works on an e-bike. A dedicated e-bike light such as the Knog Blinder E has the advantage of running from the main battery, so it never needs a separate charge.

How long does a USB bike light last on one charge?

It depends on the mode. Flashing modes last much longer than constant high output. Check the run times on each product page and choose a model that covers at least your longest ride of the week.

Can I see the lights before buying?

Yes. A wide selection of bike lights is on display at L'Hirondelle Bike Shop in Meppel, where our team can help you choose and fit them to your bike.