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.

Features:

• 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.

What you get:

• Long-Lasting Battery: A Massive 1600Mah Battery, Delivering Up To 400 Lumens And 107 Hours Runtime.    
• 360° Optitracing Light: Casts A Red Beam In Every Direction-Stay Visible From All Sides. No Blind Spots.    
• Ant+ Compatibility: Ant+ Compatibility For Seamless Sync With Cycling Devices Via Your Bike Computer.    
• Smart Brake Sensor: Built-In Motion Sensor, Automatically Switches To Maximum Output When You Hit The Brake.    
• Pelotonsync Flash: Ride As One, Flash As One. Syncs Up For Stronger Group Visibility And Safety.    
• All-Weather Ready: Ipx6 Waterproofinghandlesrain, Splash, And Storm-Ride On.    
• Twist & Lock: Quarter-Turn And Done-Mount To Your Saddle Rail Or Seatpost In Seconds.    
• Lockout Function: Activate Transport Mode To Keep It Off. No Accidental Switch-Ons, No Wasted Power.    
• 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: 37.V 1600mAh
• Runtime: 8.5-107 Hours
• Charging Time: 2-2.5 Hours (5V,0.3-1A)
• Optitracing Light: 360º
• Body material: Aluminium Alloy
• Waterproof Rate: IPX6
• Warranty: 2 years serial number required please note it down

 Whats in the box:

• SEEMEE400
• Saddle Mount
• Seat Post Mount
• USB C Cable
• Manual