Bicycle Safety Lights LED Bright Beams Rear Bike Riding Gear Accessories Bicycle Lights LED display give various directions of what you gonna do.If the bicycle stop or standby,Bicycle Light will automatically detct the bike stant condition, and automatically display arrow flash on LED screen. Rear Bike Light are safer day or night - Super Bright LED headlight really gets you noticed by drivers.If the bicycle is starting accelarating or decelerating. Bicycle Accessories Included sensitive auto turning alert .You can just press the Power button and this will activate the visible laser lines which will blink frequently. Light employing 8*8 LED for Bicycle gives you the excellent brightness in the dark!Bicycle Lights LED has Waterproof function Easy to install so don't need tools required, written and video instructions provided.High quality mounting attachments keep the lights on your bike, even on rough roads.