Gravel bikes are the new all-rounders of the cycling world and are no longer just used for sporty rides through the woods. Whether cruising through the city, popping out for a quick spin after work, or fitted with mudguards and lights for the commute to work. Anyone who doesn’t just leave their bike in the cellar during the darker months of the year will therefore need suitable lights. To bridge the gap between everyday use and sport, Litemove has developed the new compact ATS-B100.
At 203 grams, the weight is reasonable, even if the Litemove isn’t one of the absolute lightweights in its class. However, it does feature a comparatively large 5,000 mAh battery integrated directly into the casing.
The mounting system is particularly clever. The light uses a tool-free quick-release mechanism and can be combined with both GoPro and Garmin mounts. This makes it suitable for modern gravel bike set-ups with a cycle computer mount, as well as for traditional handlebar mounts.
What’s more: as the ATS-B100 has a guide groove on all four sides of the housing, the light can be fitted both above and below the handlebars. This is particularly handy with so-called aero cockpits, or simply when there isn’t enough space on the handlebars for the light.
According to the manufacturer, the lamp delivers 100 lux or 700 lumens in its highest setting. These are impressive figures for a compact rechargeable torch. Litemove states that the beam range is up to 200 metres. At the same time, the so-called ATIR optics are said to produce an even light pattern 8.5 metres wide.
However, the clearly defined cut-off line is likely to be more important for commuters. It ensures that oncoming road users are not dazzled and is a prerequisite for approval under the StVZO.
One feature stands out in particular: the built-in ambient light sensor. The ATS-B100 automatically detects changes in light conditions and adjusts the brightness accordingly. So if you’re cycling through well-lit city centres in the morning and later switch to dark cycle paths, you don’t have to keep switching between different modes.
For frequent cyclists, this could be one of the light’s greatest advantages, as ease of use often counts for more than maximum light output, particularly during the daily commute. Speaking of ease of use: a memory function allows you to quickly restore the last lighting mode used.
With a maximum runtime of up to 15 hours, the ATS-B100 is also suitable for long periods of use. According to the manufacturer, it can run for up to 1.5 hours in the highest brightness setting, and considerably longer in Eco mode. It is charged via USB-C, and the lamp also supports charging whilst in use via a power bank.
This is particularly of interest to bike packers and long-distance commuters. You can easily top up your power supply whilst on the move using an existing power bank, without having to interrupt your journey.
| Light output | up to 100 lux / 700 lumens |
| Range | up to 200 m |
| Beam width | 8.5 m |
| Battery | 5,000 mAh |
| Duration | until 3 pm |
| Charging time | 3.5 hours |
| Charging port | USB-C |
| Automatic light sensor | Yes |
| Memory function | Yes |
| Weight | 203 g |
| Protection class | IP56 |
| Authorisation | StVZO-K, ISO 6742 |
| Mount | Compatible with Garmin and GoPro |
The Litemove ATS-B100 It looks like a well-thought-out solution for gravel cyclists and commuters. The option to mount the compact light either above or below the handlebars really stands out. The automatic light sensor and the option to keep the light running via a power bank whilst riding also make it well-suited for use on long commutes and bikepacking tours. Whether the light distribution can actually compete with the market leaders from Lupine or Supernova remains to be seen in a practical test.
Automatic mode or manual control: which is more important to you in a commuter or gravel bike light? Let us know in the comments!

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