Trek Flare Bseen Taillight

Trek’s Flare Bseen Taillight is obnoxiously bright, which is exactly what you want. It's got 2 standard red LEDs and 1 huge .5-watt, ultra-bright LED that's visible from over 3,000 feet away. It's got a 90+ hour run time, steady and flashing modes and includes mounts for attaching it to your bike, pack, belt, wherever.