Cycling equipment for autumnA comparison of battery and dynamo lights

Matthias Borchers

 · 28.09.2024

Road cycling in the dark season has its charm - if you have the right equipment and, above all, good light to show you the way.
Photo: Lupine / Markus Greber

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Autumn came as quickly as the summer passed. Temperatures dropped and it felt like the sun set half an hour earlier every day. Reason enough to kit yourself and your road or gravel bike out with new equipment for the upcoming rides. For example, with a light. But which is actually better? Battery or dynamo?

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Bicycle light: battery or dynamo?

The choice between battery and dynamo lighting for road and gravel bikes depends on individual needs and conditions of use. The advantage of battery-powered lighting is that it can be quickly fitted to the bike. Modern LED battery lights are light, compact and offer sufficient lighting power from 100 lux for the road or light terrain. Their biggest disadvantage is the limited battery life, on average two hours at full load.

Dynamo lighting, on the other hand, is independent of external power sources and provides continuous light. This is practical for long-distance cyclists and commuters. Modern hub dynamos are virtually resistance-free and reliable, even in bad weather, and current dynamo headlights shine brightly enough even at low speeds. Disadvantages are the higher system weight and the fixed installation, although ready-made dynamo wheels are available from around 100 euros.

Bicycle light with dynamo

M99 DY Pro from SupernovaPhoto: Matthias BorchersM99 DY Pro from Supernova

The dynamo headlight M99 DY Pro from Supernova has a high beam light that the spotlight emits homogeneously by means of 99 reflector facets and is directed well over a hundred metres ahead; the area in front of the front wheel and the edge of the road are also well illuminated. The high-quality housing made of black anodised aluminium weighs just 200 grams. The light can be switched on and off using a wired remote control, and an optional rear light costs from 70 euros.

Bicycle light with rechargeable battery

Grano SL from LupinePhoto: Lupine / Markus GreberGrano SL from Lupine
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The new Grano SL from Lupine is one of the highest quality rechargeable headlamps on the market. Its reflector is designed for overhead mounting on the GoPro adapter. At full power, the headlamp (including holder), which weighs just under 190 grams, shines for exactly the one and a quarter hours specified by the manufacturer; it is fully charged again after two and a half hours. With sensor-controlled daytime running light, one battery charge lasts twelve hours.

  • Price: 196 Euro
  • Accessories: Gopro holder adapter, USB-C charging cable

Included set

Aura 100 from SigmaPhoto: sigmasport.comAura 100 from Sigma

The Aura 100 battery-powered light set from Sigma impresses with a homogeneous and sufficiently bright carpet of light for the 100 lux output. The Blaze rear light has an integrated brake light function, both lights are paired via Bluetooth and can be switched on and off with a switch. The workmanship is high quality and the long battery life of up to twelve hours in eco mode is practical as emergency lighting in poor visibility conditions during the day.


Matthias Borchers is an expert for clothing and accessories in the test department of TOUR. As an amateur cyclist, he has completed the TOUR-Transalp and the TOUR-Trans Austria. His reportage trips from San Francisco to Sakai and 17 trips to the Tour de France with around 30,000 motorhome kilometres are also formative.

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