• Dimension：41.5 x 33.5 x 93.5 mm
• Weight：94 grams (light unit and battery)
• Light source：High-intensity LED x 1
• Run time：High（500 lumens）： 2 hrs Middle（150 lumens）： 9 hrs Low（100 lumens）： 15 hrs Daytime HyperConstant（500/100 lumens）: 18 hours Flashing（100 lumens）: 130 hrs
• Battery：Li-ion rechargeable battery (3.6V-2,200mAh)
• Recharge time：Approx 3-6 hrs (3hrs fast recharge using 1A or higher USB charging adaptor, or using USB3.0)
• Recharge/discharge number of times：About 300 times（until the rated capacity drops to 70%）
• Other：Built-in fast recharging circuit, Lighting mode memory function, Helmet mount / Center fork bracket / Out-front bracket 2 (optional) 

Tech Specs of Back Light

• Dimension：74.5 x 26 x 28mm
• Weight：43g (with battery)
• Light source：Red LED X 5
• Battery：Lithium Polymer rechargeable battery
• Runtime：High（40 lumens）：1.5 hrs Low（5 lumens）：15 hrs Flashing（30 lumens）：50 hrs Rapid（50 lumens）：20 hrs Group Ride（40 lumens）：15 hrs Daytime HyperFlash（50 lumens）：30 hrs
• *When Kinetic mode is enabled 60 times per hour High（40 lumens）：1.4 hrs Low（5 lumens）：6 hrs Flashing（30 lumens）：7 hrs Rapid（50 lumens）：6 hrs Group Ride（40 lumens）：6 hrs Daytime HyperFlash（50 lumens）：7 hrs
• Recharge time：2.5 hrs (USB recharge)
• Mount size：Rubber band mount (fits φ 26.0-32.0mm seatpost)
• Note：Activation of the Kinetic mode depends on the degree of deceleration, the light may not react or the reaction may be delayed. 

• Synchronize all SYNC lights
• One touch turns all lights on/off
• Synchronized lights connection status indicator
• Control with smartphone app - Pair the lights (up to seven lights) - Customize light modes - View remaining battery level - Turn on/off the lights - Turn on/off synchronization with other lights - Find me function lets the light flashing by tapping the button on app