Portland Design Works Kepler Ebike Headlight

The Kepler is compatible with e-bike systems operating between 6V and 15V. Before purchasing, verify that your specific e-bike system outputs power within this voltage range to ensure proper compatibility.

The beam is engineered with a distinct cut-off line at the top, which directs light onto the road rather than into the eyes of oncoming cyclists or drivers. This design improves safety and courtesy while ensuring you still have clear visibility of the path ahead.

The light mounts securely to the fork crown using a durable stainless steel bracket. Because it is hardwired directly into your bike's electrical system, installation requires basic knowledge of e-bike wiring; if you are uncomfortable with electrical work, we recommend having a local bike shop handle the connection.

No, the Kepler draws power directly from your e-bike's main battery. Once it is wired into your system, it turns on and off with your bike, so you never have to worry about charging it or carrying spare batteries.

350 lumens is well-suited for urban commuting and well-lit paths, providing enough visibility to see and be seen by traffic. If you frequently ride on unlit trails or at high speeds in pitch-black conditions, you may prefer a higher-output light, but for general city use, this is a reliable and efficient choice.