Blackburn Mars 1.1 LED Rear Light
There aren't too many bike lights that will get you seen from behind more quickly than the Blackburn Mars 1.1 Tail Light. Three super-bright LED's light up the back of your bike like the red planet itself in steady or flashing modes to make sure you don't wind up staring at the underside of someone's car.
Great product! The on/off switch is at an easy to reach area on the top of the light, it makes switching it on/off easy. So far, it doing what it should and held up well in rain or shine. I am very happy with this purchase :D