Magicshine Seemee 400 Ant+ Taillight

95.99 CAD
Shipping calculated at checkout.

ANT+ Compatibility for Seamless Sync with Cycling Devices via Your Bike Computer.

Max Output
400 lumens
Max Runtime
107 hours
ANT+
Support
SENSOR
BRAKE SENSOR
Optitracing Light
360°
Waterproof
IPX6
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● Dual high-power LEDs output up to 400 lumens for strong road presence and added safety.

● Signature OptiTracing light projects a 360° glowing halo for all-around safety.

● Powered by a 1600mAh battery, delivering up to 107 hours of runtime.

● ANT+ integration enables direct control via Garmin, Wahoo, and Hammerhead computers.

● FTR LightSync enables remote sync between front and tail lights for streamlined use.

● Smart brake sensor triggers a full 400-lumen alert for added stopping safety.

● PelotonSync Flash syncs with nearby taillights for coordinated group visibility.



Mode Lumens h:min
Main Light Optitracing
Light		 Runtime
Low 15LM 15-0LM 19:00
High 90LM 90-0LM 08:30
Night Flash 45-75LM 60LM 08:30
Day Flash 400-0LM / 18:00
Eco Flash 30/0LM / 107:00
  1. SEEMEE 400 x1
  2. Seat post mount x1
  3. Saddle mount x1
  4. Mounting strap x2
  5. Type-C charging cable x1
  6. User manual x1
🚚︎   Fast, Reliable Delivery

Global shipping to most countries with real-time tracking. Orders are processed within 1-2 business days, and most arrive within 5-10 business days. Delivery times may vary by location. Learn more
🔒︎   Hassle-Free Warranty

Magicshine provides a straightforward, hassle-free warranty to save you some headaches. All prouducts come with their own unique warranty. Learn more
↩︎   Easy Returns & Exchanges

Please refer to our Returns and Exchanges Policy for more details on a smooth returns process. Learn more
FOR ALL-AROUND SAFETY

The SEEMEE 400 is a completely upgraded version of the SEEMEE 300: 360° follow light + high-transparency optical light guide strip to achieve no blind spots and strong warning; upgraded with FTR multi-light interconnection and team synchronized flashing technology, and also supports intelligent brake warning/vibration wake-up, ANT + bike computer pairing and light control, empowered by multiple core black technologies, making it smart and convenient, and doubling the riding safety efficiency.

LONG-LASTING BATTERY

LONG-LASTING BATTERY

A massive 1600mAh battery, delivering up to 400 lumens and 107 hours runtime.
360° OPTITRACING LIGHT

360° OPTITRACING LIGHT

Casts a red beam in every direction-stay visible from all sides. No blind spots.
ANT+ COMPATIBILITY

ANT+ COMPATIBILITY

ANT+ compatibility for seamless sync with cycling devices via your bike computer.
SMART BRAKE SENSOR

SMART BRAKE SENSOR

Built-in motion sensor, automatically switches to maximum output when you hit the brake.
PELOTONSYNC FLASH

PELOTONSYNC FLASH

Ride as one, flash as one. Syncs up for stronger group visibility and safety.
ALL-WEATHER READY

ALL-WEATHER READY

IPX6 water proofing handles rain, splash, and storm-ride on.
TWIST & LOCK

TWIST & LOCK

Quarter-turn and done-mount to your saddle rail or seat post in seconds.
LOCKOUT FUNCTION

LOCKOUT FUNCTION

Activate transport mode to keep it off.
No accidental switch-ons, no wasted power.
FAST CHARGING

FAST CHARGING

Mode memory function, easy-to-read indicators and USB-C rechargeable, 2.5 hour fast charging keep it shining strong.

Specifications

MAX OUTPUT

400 Lumens

BATTERY CAPACITY

3.7V 1600mAh

RUNTIME

8.5-107 hours

CHARGING TIME

2-2.5 hours (5V, 0.3-1A)

OPTITRACING LIGHT

360°

BODY MATERIAL

Aluminum alloy

WATERPROOF

IPX6

WARRANTY

2 years
Magicshine Seemee 400 Ant+ Taillight
DOWNLOAD USER MANUAL
Product Comparison
MODEL SEEMEE 60
SEEMEE 60
 SEEMEE 300
SEEMEE 300
 SEEMEE 200 V3.0
SEEMEE 200 V3.0
 SEEMEE R300
SEEMEE R300
Max Lumens 400 Lumens 300 Lumens 200 Lumens 300 Lumens
Optitracing Light ● / ● /
Runtime 8.5–107 6–200 hrs 5–102 hrs 8–100 hrs
ANT+* ● / / /
Vibration Sensor ● ● ● ●
FTR LightSync Control ● / / /
Pelotonsync Flash ● / / ●
Brightness Sensor / ● ● /
Camera Recording / / / /
App Customization / / / ●
Low Power Mode ● ● ● ●
Lock Function ● / / ●
Visibility Angle 260° 260° 360° 270°
Waterproof Rate IPX 6 IPX 6 IPX 6 IPX 6
Battery Capacity 3.7V, 1600mAh 3.7V, 1600mAh 3.7V, 1000mAh 3.6V, 1250mAh
Charger USB-C USB-C USB-C USB-C
Charging Time 2–2.5 hours / 5V / 0.3–1A 2 hours 5V/1A 1.5 hrs 5V/1A 2.5 hrs 5V/2A
Weight 80 g 80 g 40 g 109 g
Dimension 64×32×25 mm 64×32×35 mm 32×28×43 mm 29×34×96 mm
Material Aluminum Aluminum Plastic Aluminum + plastic
Mounting System Quarter-turn mount Quarter-turn mount Quarter-turn mount Quarter-turn mount