MAGICSHINE Rear Light - SeeMee 400 - Smart Motion Sensor - OptiTracing - ANT+

SEEMEE 400

With higher output, expanded visibility, smarter syncing, and deeper integration, it’s built for road cyclists and urban riders who expect more from their taillight.

OptiTracing light, projecting a 360° glowing halo onto the road

Instant Boosting Alert - brake detection—but SEEMEE 400 pushes it further with an instant 400-lumen burst triggered by an upgraded motion sensor.

Connectivity and Control - As Magicshine’s flagship taillight, SEEMEE 400 brings unmatched integration and coordination to your ride.

PelotonSync Flash lets multiple lights flash in unison - automatically syncing with nearby compatible Magicshine taillights.

FTR LightSync Control links seamlessly to the MJ-6558 remote for front-rear control at the push of a button.

Prefer cockpit integration? The SEEMEE 400 connects directly with Garmin, Wahoo, and Hammerhead bike computers via ANT+—giving you effortless control right from your handlebars.

Built for Every Ride

SEEMEE 400 delivers up to 107 hours of runtime

USB-C fast charging

Lockout function to prevent accidental activation.

Its IPX6 waterproof rating ensures all-weather reliability

Quarter-turn mount offers quick, secure installation on seatposts or saddle rails.

SEEMEE 400 is not just a brighter version of SEEMEE 300—it’s a smarter, safer, and more connected evolution.