Cateye Rapid X3 Usb Rechargeable Rear Light (150 Lumen):

Outstanding brightness. Cateye’s brightest and most all-round visible rear light, with 150 Lumen output. Job done!

• Ultra bright strip COB LED technology – maximum 150 Lumen output
• USB Li-ion rechargeable battery
• Versatile rubber band mounting system ( 12-32mm ) for seatposts and seatstays
• Light Mode memory
• Battery indicator
• Battery Auto Save, converts to flashing mode so you’re never left in the dark
• Recharge time: 3 hrs

Mode: Runtime ( when using the same illumination pattern simultaneously for both LED modules )
High: 1 hr
Low: 5 hrs
Flashing: 30 hrs
Rapid: 16 hrs
Pulse: 16 hrs
Vibration: 8 hrs