Rechargeable bike lights put to the test: 23 front and rear lights for cyclists
Matthias Borchers
· 14.01.2026
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Rechargeable bike lights have come a long way in recent years – not only in terms of brightness, but above all in terms of efficiency. LED technology is now standard: all manufacturers use white LEDs, which produce a lot of light from very little power.
However, it is not just the brightness of the light source that matters, but also the runtime, so that the lights do not have to be plugged in constantly. Modern control systems dynamically regulate the light intensity and ensure that, even as the battery charge decreases, there is still sufficient light on the road so that an evening ride does not come to an abrupt end.
For the systems tested here, the operating times ranged from just under two hours to a solid six hours; the charging time required to recharge the batteries varies between two and five hours, depending on the model and capacity.
Shining examples
Reflector technology plays a key role, particularly in headlamps. High-quality reflectors distribute the light evenly and prevent glare – both for the driver and for oncoming road users. A uniform light pattern, a clear cut-off line and wide illumination of the carriageway are hallmarks of good lighting technology.
Rear lights, on the other hand, stand out thanks to additional features such as brake lights or automatic brightness adjustment. Anyone investing in rechargeable lamps today not only gets better performance, but also greater convenience and safety.
The 12 test candidates
- Busch & Müller Ixon Rock + Brixxi
- CateyeKit Gvolt 70.1 + Rapid Micro G
- Contec Dlux micro power 120 lighting set
- Decathlon ST 930 Set
- Fidlock Pinclip Battery Light
- KnogBlinder 120 & Mid Cobber Twin Pack
- Lezyne Macro 500+ Strip Lighting Set
- Lupine SL Minimax AF+ C14 Mag
- Osram LEDs Bike Race 100E Set
- Sigma Aura 100 + Blaze Link Set
- Supernova Lights B54 Pro
- Trelock LS 760 I-Go Vision 100 Lux Set – Brake light
In practice, it quickly becomes apparent whether a lighting kit has been well thought out. As well as sheer light output, it is also important that the units are simple to use, easy to fit and adjust – and that they are securely fastened. Good headlights and rear lights can be controlled intuitively using switches – ideally even whilst wearing gloves and in wet conditions. The switches should have a clear function and a well-defined, easily detectable pressure point: press once to switch on, press twice for full beam, press and hold to switch off – it should be that simple.
Equally important is the display of operating statuses. A good battery level indicator provides meaningful information about the charge level, so that you don’t suddenly find yourself in the dark. A single LED that flashes frantically just before the light switches off is not a practical solution. Better options are multi-stage indicators that work like a fuel gauge and allow you to reliably estimate how long the power will last. Even better are models that show the remaining runtime in hours or as a percentage – either via a display or through an app.
Status display
Anyone switching between different modes should be able to clearly see whether Eco, Standard or Boost mode is currently active. This not only helps to save energy, but also aids in adapting to changing light conditions. Fitting lights to many modern bikes is no longer as straightforward as it used to be, when a simple rubber ring was enough to attach the headlight and rear light quickly and easily. Today, many handlebars and seatposts are aerodynamically shaped and have flat or teardrop-shaped cross-sections. Many light sets can only be attached to these using suitable adaptors. Anyone wishing to use their portable lighting system on several bikes should also ensure that the front and rear lights can be fitted quickly and without tools. After all, a good lighting set must not only provide bright light, but also be ready for use in no time.
Shops & Lighting
In our test, we focused on real-world use. All twelve rechargeable torches were charged and discharged several times to test the reliability of the indicators. This revealed that a good battery-level indicator is more than just a nice extra. Ideally, it should consist of a multi-stage LED bar that displays the battery level clearly and comprehensibly. Indicators with changing colours – for example, from green to yellow to red – are acceptable, provided the gradations are unambiguous. Single-colour indicators that merely alternate between steady and flashing provide too little information and leave the user in the dark about the remaining runtime.
In practice
To assess the mounts, we fitted all the models on a trial basis – both to classic round handlebars and seatposts, as well as to modern aero handlebars and contoured seatposts. The limitations of aerodynamic tube shapes quickly become apparent. Most lights could not be securely attached to them. The only solution here is to use specialised components, such as extensions or adaptors from third-party manufacturers like Topeak.
On our test track in Munich’s Perlacher Forst, the candidates had to demonstrate what they are capable of in their core area of performance. The headlamp should illuminate the area directly in front of the front wheel brightly and evenly, without dazzling oncoming traffic. A clear cut-off line is essential. The rear light should also be clearly visible from the side; an integrated brake light function is a real safety bonus – in city traffic as well as on winding descents and when cycling in a group. Decathlon and Osram offer reliable and affordable light sets for night-time cycling. The Decathlon headlamp impresses with its wide, even beam, but is bulky and only fits round handlebars. Osram offers a slimmer model with a more flexible mount and a good display showing battery level and brightness. At the top end of the price range, Lupine and Supernova Lights stand out with excellent build quality, maximum light output and a high-beam function. Both are fully configurable via an app and offer high-end technology. Anyone prioritising visibility, safety and comfort will find suitable models for every budget in our test line-up.
An overview of all test results
Our conclusion
In the latest test by Akku-Licht, affordable sets costing 50 euros go head-to-head with high-end systems costing many times that amount. Anyone who cycles frequently and for long periods in the dark will find top-of-the-range technology from Lupine and Supernova: the SL Minimax AF 7 and the new B54 Pro deliver outstanding performance and are well worth the money. Surprisingly strong: Decathlon and Osram perform respectably in terms of light output and ease of use at a fraction of the price, and are more than just emergency lighting. When it comes to rear lights, many models score highly with integrated brake lights, including Sigma and Trelock.
How BIKE carries out its tests
We assessed the front and rear lights according to five criteria: light pattern, burn time, ease of use, build quality and mounting bracket; the results for these criteria are factored into the overall mark with varying weightings.
Illuminated profile (30 per cent)
The light pattern is determined by the brightness and illumination of the test section. The headlights were aligned so that their cut-off line coincided with the top edge of the pylon 30 metres away. The assessment focused on how evenly the light pattern illuminates the near and far areas, as well as the edge of the carriageway. For the Lupine and Supernova Lights, we photographed and assessed the light pattern with the headlights set to full beam.
Burn time (25 per cent)
Before the three measurements were taken, all headlights and rear lights were completely discharged twice. We measured the battery life at maximum output. To prevent the headlights from automatically reducing their output due to overheating, the measurements were carried out at a night-time temperature of around ten degrees, with additional cooling. The figures given for the running time refer here to the maximum setting.
Handling (15 per cent)
In the case of battery-powered headlights, switches with a defined pressure point should be easy to operate, and the switch on the rear light should be easy to locate even without looking. The quality and accuracy of the charge level indicator are also assessed.
Processing (15 per cent)
The assessment covers material quality, moulding marks, the quality of the seals and watertightness. We rate aluminium headlamp housings more highly than plastic ones because of their superior heat dissipation.
Halter (15 per cent)
The assessment focuses on the mounting options and how securely the unit attaches to the handlebars, stem and seatpost. Manufacturers such as Busch + Müller, Cateye, Lupine, Sigma and Supernova offer practical mounts as accessories for fitting to modern aero handlebars.
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Matthias Borchers
Editor