. Stay safe and be seen with LifeLine’s Aero Beam 25 Lumen Rear Light. Ideal for commuting and training in low light conditions. This rear light has a 25 lumen output from 16 COB red LEDs. The Aero Beam 25 Lumen Rear Light lets you choose from five modes to suit your environment and battery life Versatile Rear Light, USB Rechargeable . This rear light is USB rechargeable to let you charge on the go; the strong silicone strap lets you mount LifeLine’s Aero Beam 25 Lumen Rear Light to any seatpost profile or any diameter. Also water resistant, this 25 lumen rear light will give you peace of mind to pedal in all conditions Features: Output: 25 LumenDimensions (mm): 79 5x29x30Charging: 2-3hrsLED: 16 COB redFive Modes:High Beam: 1.5hrsLow Beam: 6hrsFast Flash: 24hrsSlow Flash: 27hrsPulse: 6hrsAccessories: USB charging cableBattery: Rechargeable Lithium-Ion polymerStrong silicone strap mounts to any seatpost profile or diameterLow battery and full battery indicatorsRear and side visibilityWater resistantWeight: 31gBuy LifeLine Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.