The Trelock LS 633 DUO TOP is a compact, versatile rear light designed for bikes fitted with hub or side dynamos. It mounts easily on the mudguard or rear stays, thanks to the included bracket. It guarantees constant lighting and includes an automatic position light system to ensure visibility and safety even when stationary.
Key Features
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Power supply via dynamo (6 V) - ideal for classic bikes and e-bikes fitted with dynamo.
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Flexible mounting - can be fitted to mudguards or rear stays (bracket included).
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Good visibility - effective lighting for long-distance visibility.
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Automatic position light - stays on for a few minutes after stopping for added safety.
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Integrated reflector - added safety when the light is not powered.
Technical specifications
| Features |
Detail |
| Make / Model |
Trelock LS 633 DUO TOP |
| Type |
LED rear light (dynamo) |
| Power supply |
6 V dynamo (hub or side) |
| Mounting |
Rear mudguards or shrouds (support included) |
| Visibility / reach |
Up to 500 m / effective visibility in normal use |
| Automatic parking light function |
Yes (a few minutes after shutdown) |
| Integrated reflector |
Yes |
| Weight |
~40 g |
| Certification |
StVZO-compliant (German standard for bicycle lighting) |
| Recommended use |
Urban bikes, trekking bikes, dynamo bikes (classic or e-bike) |
