Why do you need the best bike rear light, or tail light if you're a rider? Because it's winter and it gets dark early, and that means... peril on the highway! Not wanting to be alarmist, the nights are drawing in, mornings are dark, drivers are often sleepy and visibility is often poor on those dull, overcast days.
Advantages: Tail light offers daylight visibility up to a mile away and is visible within a 220-degree range, so drivers can see you well before the radar sees the vehicle. See and be seen, day or night. Battery life up to 15 hours in flashing mode or 6 hours in solid or night flash mode. Lumens is 20 solid, 29-night flash and 65-day flash.
Light Range: Provides visual and audible alerts to warn of vehicles approaching from behind up to 153 yards (140 meters) away. Sleek vertical design easily mounts to most road-use bicycles, including racing, touring and commuter styles.