The Lezyne Femto Rear Light USB Drive 5 Lumens is a compact and lightweight tail light with five output modes, capable of up to 5 lumens and 270 degrees visibility thanks to the Wide Angle Optics lens. Battery life is up to 15 hours and it can be easily charged with any Micro-USB cable. It features a durable co-moulded construction and will handle all conditions with an IPX7 water resistance rating and a secure, threaded composite cover that keeps the USB port sealed. The mounting strap suits a variety of bar sizes.