topeak taillux 100 usb light in black

Triple mode, usb rechargeable, ultra-bright tail light with spot / flood combo mode providing 100 lumens of extreme visibility. Features:Tool-free mounting and easy removal on aero or round seatposts, or helmet4 modes: constant, blinking/constant, constant/blinking sequence, and blinkingusb rechargeableipx 6 waterproof5.7x4.1x2.5cm30gmax output: 100 lumenslamp: 9 super bright ledsbattery: 3.7v 700mah lithium ionburn time: 2hr (constant), 5hr (blinking/constant), 10hr (constant/blinking sequence), 30hr (blinking)charge time: 4 hr