INBIKE Super Bright Bike Light Taillight 300MAH USB Rechargeable LED Ultra-Bright to keep safety the COB Wick LED makes it with 160 degree wide range lighting plane It's special TPR material with IP54 water proof level to effectively resist water of raining or snowing day, can even works into water 3.5h super long run life with 300MAH USB rechargeable battery 6 modes luminance controlled by the power button to fit all kinds of situations, the brightest mode provides 80 Lumen LED with 45min runtime and the lowest light provides 20 Lumen with 200min runtime Short charging time with 300MAH USB rechargeable battery to finish charging in 2-3 hours. Smart charging design able to automatic power-off to extend the life